Answer:
Let the interbred alleles be represente dy the letters A and B for two genes. Gene A will exist in two alleles, that will icnlude A and g while Gene B exists in two alleles, B and r.
The uppercase alleles are dominant to the lowercase alleles. The interbred long-shaped squash is AABB (aabb) and the true-breeding disk-shaped is ggrr AABB.The F1 offspring are AaBb.
The outcome of interbred of the F1 plants and genotypes and phenotype sof F2 for:
1) the disk-shaped phenotype, an offspring must inherit at least one dominant allele from both genes.
1 ggrr+ 2 Agrr+ 2 ggrB+ 4 AgBr = 9 disk-shaped offspring
2) To get the round phenotype, an offspring must inherit at least one dominant allele for one of the two genes but must be homozygous recessive for only one of the two genes.
1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB = 6 round-shaped offspring
3) To get the long phenotype, an offspring must inherit all recessive alleles:
1 AABB= 1 long-shaped offspring
Hence, the phenotype and genotype of F2 is is 9 disk-shaped offspring and 1 ggrr+ 2 Agrr+ 2 ggrB+ 4 AgBr; 6 round-shaped offspring and 1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB; and 1 long-shaped offspring and 1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB respectively.
While test crosses in pea plants can typically reveal the genotype of an unknown parent, crossing with a homozygous recessive cannot differentiate between homozygous dominant and heterozygous without a larger sample size. Epistasis in summer squash results in a 12 white:3 yellow:1 green phenotypic ratio when WwYy heterozygotes are crossed. The shepherd's-purse plant exhibits a 15 triangular:1 ovoid phenotypic ratio when AaBb plants are crossed.
Explanation:In pea plants, the allele for round peas (R) is dominant to the allele for wrinkled peas (r). When performing a test cross between a homozygous recessive plant with wrinkled peas (rr) and a plant of unknown genotype displaying round peas, and if all resulting offspring have round peas, we cannot conclusively determine if the round pea plant is homozygous dominant (RR) or heterozygous (Rr). This is because both genotypes can produce round pea offspring when crossed with a homozygous recessive (rr) plant. However, if the unknown parent were heterozygous (Rr), the probability of all three offspring displaying round peas is 1/23 because each offspring has a 1/2 chance of inheriting the dominant allele for round peas.
In the case of summer squash exhibiting epistasis, a cross between white heterozygotes (WwYy) for both the W and Y genes produces a phenotypic ratio of 12 white:3 yellow:1 green. Here, the presence of at least one dominant W allele masks the expression of the Y alleles, leading to white fruit regardless of the genotype of the Y gene.
Considering shepherd's-purse plant (Capsella bursa-pastoris), where seed shape is controlled by two genes, A and B, and triangular seeds occur if any dominant allele is present from either gene, the expected phenotypic ratio for a cross between plants that are heterozygous at both loci (AaBb x AaBb) is 15 triangular : 1 ovoid, as there are 15 genotypic combinations that contain at least one dominant allele, and only one genotypic combination that is homozygous recessive at both loci (aabb).
Compare the environmental and societal impact of urban sprawl to upward growth. please hurry!!!
Answer:
Urban sprawl means the Migration of population from the densely populated cities to the low populated areas around the cities.
Urban Sprawl has a huge impact on the environment. Urbanisation leads to cutting down of trees which are called deforestation. Deforestation is extremely bad for the environment because it creates a disbalance in the environment. Trees are extremely important to us because they provide us with raw materials and oxygen and we should not cut down the trees at any cost.
When people move further and further out from the city center, only the poor are left behind int he city. They have no choice but to live in the most blighted areas. Buildings are crumbling, shops are closed, and access to basic necessities is lacking. The natural environment is often damaged as well. For example, unhealthy air quality is aggravated by heavy traffic congestion, causing high rates of respiratory illnesses. The quality of life in these abused and neglected urban centers is greatly reduced.
Explanation:
Urban sprawl negatively impacts the environment through increased automobile dependency, land consumption, and pollution, leading to socioeconomic segregation and higher developmental costs.
Upward growth, representing high-density living, is often more sustainable but may also result in high-density sprawl. The greatest challenge for sustainable cities is controlling sprawl to conserve resources and promote a better quality of urban life.
The environmental and societal impact of urban sprawl compared to upward growth, refers to the consequences on the environment and society when cities expand horizontally versus growing vertically. Urban sprawl, characterized by low-density expansion into rural areas, increases average travel distances, encourages automobile dependency, and leads to extensive land, energy, and soil consumption.
These factors contribute to greenhouse gas emissions and elevate air and noise pollution levels. Sprawl also has socioeconomic impacts such as segregation of development by income, greater societal divisions, and increased developmental costs.
Contrarily, upward growth in cities, through the construction of high-rise buildings and denser living spaces, can be more sustainable, reducing pressure on surrounding agricultural and natural lands, and promoting efficient use of land and resources.
However, it might also lead to high-density sprawl depending on the urban design and infrastructural support. The sustainable city model aims to tackle these challenges by integrating growth within the existing urban footprint, promoting high-density living, and encouraging sustainable transportation options.
The major hindrance for designing a sustainable city is suburban sprawl, as it spreads into natural and agricultural lands and necessitates greater resource allocation for infrastructure, leading to economic and environmental challenges.
How is a junior penguin able to survive in the ocean?
someone now this question
Answer:
the penguins have a special care process since the hatching of the egg, the newborns receive care from their parents and have warmth from them placing themselves between their paws, the parents take turns caring for them and when the father is not with the chick, he goes in search of food, which he gives regurgitated, then the cris can go to a kindergarten where others of the same age are cared for by a herd of penguins, however his parents go to the sea and feed and continue to bring food to their son, this process it is kept until they change plumage and are ready to get their food on their own.
Final answer:
Junior penguins are able to survive in the ocean due to adaptations such as blubber for insulation, waterproof feathers, and the ability to store and use oxygen efficiently.
Explanation:
Junior penguins are able to survive in the ocean due to several adaptations and behaviors. Firstly, penguins have a layer of body fat called blubber, which helps to keep them warm in cold water. This fat also helps them to float and conserve energy. Secondly, penguins have specialized feathers that are waterproof, allowing them to stay dry while swimming. These feathers trap air, providing insulation and buoyancy. Finally, penguins have evolved a unique way of storing and using oxygen. Unlike other birds, penguins can control how much oxygen they carry in their lungs when diving. They can store oxygen in their muscles and blood, allowing them to stay underwater for extended periods of time.
what is the relationship between animals and plants that process similar nitrients
Answer:
Both plant and animal cells absorb nutrients and convert those nutrients into usable energy. Animal cells absorb nutrients from food, while plant cells absorb energy from sunlight via a process called photosynthesis.
pls help biology
it seem hard to me
Answer:
there are more particles at the surface than deeper depths
Explanation:
In the Virtual Lab, what are two observations you made about how changes in an ecosystem can impact populations?
Answer:
Changes in the environment can modify the amount of natural resources available for the populations to survive. Changes in the environment can separate a population and cause changes so intense that it prevents members of the population from establishing crossings.Explanation:
As we know, changes in the environment can be caused by the manipulation of human beings or even by natural processes and phenomena of nature. What matters is that these changes always provide an environmental impact that can be beneficial or harmful, but will always affect populations.
Environmental impacts can cause changes in the environment that will modify the amount of environmental resources (food, water, habitat) needed for the populations to survive. The reduction of these environmental resources can cause an increase in the mortality rate of populations.
In addition, environmental changes can separate a population and cause an evolution in each separate part to the point of generating new species and not allowing members of each species to establish crosses.
Answer:
Changes in the environment can modify the amount of natural resources available for the populations to survive.
Explanation:
A 20 – year old man who has cystic fibrosis has a sister who is planning to have a child. The man encourages his sister to see a genetic counselor. What do you think the man’s reasons are for giving such advice?
Answer:
Man encourages his sister to see a genetic counselor in order to find out that she has the genetic disease or not.
Explanation:
Cystic fibrosis is genetic disease that can transfer from parents to their offspring. This is a very dangerous disease which decrease the life span of patient and the patient die in early stages of life. The man with Cystic fibrosis disease encourage his sister to go to the genetic counselor to find out the presence of disease in her blood because she is planning a baby and we know that this is a hereditary disease so if she has this disease it will transfer to her child.
Final answer:
The man with cystic fibrosis advises his sister to see a genetic counselor to assess the risk of her potential child inheriting the disease, as cystic fibrosis is recessively inherited and genetic counseling can provide valuable risk assessment and information for family planning.
Explanation:
The 20-year-old man with cystic fibrosis is likely suggesting genetic counseling to his sister because cystic fibrosis is a recessively inherited genetic disorder. This means that while he expresses the condition, his sister could be a carrier of the cystic fibrosis gene mutation without showing symptoms. If she and her partner are both carriers, there is a chance their child could inherit the disorder. A genetic counselor can help assess this risk by evaluating family history and possibly conducting genetic tests. This would enable his sister to make informed decisions about family planning and prepare for any necessary medical interventions or lifestyle adjustments should the child be at risk for cystic fibrosis.
List the structures of a sperm. (Module 26.3C) List the structures of a sperm. (Module 26.3C) acrosome, head, cilia, and flagella acrosome, head, neck, middle piece, and tail nucleus, lysosomes, peroxisomes, and Golgi apparatus acrosome, spermatid, and spermiogenic head head, neck, and tail
Answer:
I think your question is poorly worded, just like all the parts are: a head and its flagellum, but within them we can distinguish several structures, which, in cephalad-caudal order (from head to tail, that is, from top down), son: acrosome, nucleus, membrane, neck, middle piece, tail and end piece.
Explanation:
Sperm are zygote cells that have half the genetic load, which is why when they join the ovum in fertilization, they form the complete genetics of the human.
In turn, the sperm has very efficient mechanisms for obtaining rapid energy, since they consume many ATP molecules when inoculating the ovum during fertilization.
They are formed by with the help of the sertoli cell, which sets the physiological state so that in the human testicle they are formed releasing in the male semen.
Answer:
head,acrosome, neck, middle piece, and tail
Explanation:
The sperm cells are sex cells that are produced in the testicular organ (gonad) of male human beings and animals.
The basic structure of the sperm includes;
1) The Sperm Head
A normal sperm head is smooth and oval shape, and measures 2.5 to 3.5 um in diameter and 4.0 to 5.5 um in length.
The head is the most important part of the cell given that it contains the nucleus which takes about 65% of the head and consist of the 23 chromosomes. Other materials too like the acrosomal region is found in the head which comprises of the acrosome and the acrosomal cap ( the acrosome is involved in the recognition of the oocyte (egg) to be fertilized).
2) The centriole is part of the sperm cell located between the head and the midpiece (the neck). In a centriole-centrosome complex, the centriole is involved in the formation of sperm aster and zygote aster.
3) Middle piece
The midpiece is the central part of the sperm cell between the head and the tail. They contain tightly packed mitochondria that provide the energy requires for swimming of the sperm towards the oocytes.
4)Tail
The sperm tail is a thin, elongated structure that makes up about 80 percent of the entire length of the sperm. It consists of several parts;
a) Connecting piece – it connects the flagellum to the sperm head
b) Midpiece - In some books, the midpiece is described as part of the tail. It contains mitochondria and thus provided the energy required for movement as explained above
c) Principal piece (axial filament) and
d) End piece
principal piece and the end piece of the tail help generate the waveform that allows for movement of the sperm cells.
Suppose that each β–adrenergic receptor bound to epinephrine converts 100 molecules of the G???? subunit to the GTP-bound form, G????s. If each molecule of activated adenylate cyclase produces 1000 molecules of cAMP per second, how many molecules of cAMP are produced in 10 seconds after the formation of a single complex between epinephrine and the β–adrenergic receptor? Assume the pathway is fully responsive.
Answer:
The correct answer is 10^5*10 molecules of cAMP are produced.
Explanation:
It is given that when each molecule of epinephrine combines with the adrenergic receptor the transformation of 100 molecules of G-alpha takes place into their stimulated GTP form, which further stimulates adenylate cyclase. This stimulated adenylate cyclase further give rise to 1000 molecules of cAMP per second.
Therefore, in one second the production of 100 * 1000 or 10^5 cAMP molecules is taking place.
Thus, in 10 seconds, the production of 10 * 10^5 cAMP molecules will take place.
After epinephrine binds to a single β-adrenergic receptor, it activates 100 Gαₛ units, which each activate adenylate cyclase to produce 1000 cAMP molecules per second. Over 10 seconds, this results in the production of 1,000,000 molecules of cAMP.
The question concerns the biochemical pathway by which the hormone epinephrine activates the production of cyclic AMP (cAMP) in cells. When epinephrine binds to the β-adrenergic receptor, it activates a G-protein, which in turn activates adenylate cyclase. This activation leads to the conversion of ATP to cAMP. According to the supplied information, each β-adrenergic receptor bound to epinephrine activates 100 Gαₛ units, and each molecule of activated adenylate cyclase produces 1000 molecules of cAMP per second.
To calculate the total cAMP produced after 10 seconds, we multiply the number of Gαₛ units activated by the cAMP production rate of adenylate cyclase, and then by the duration of 10 seconds:
100 (Gαₛ units) x 1000 (cAMP per second) x 10 (seconds) = 1,000,000 cAMP molecules
Therefore, 1,000,000 molecules of cAMP are produced in 10 seconds after the formation of a single complex between epinephrine and the β-adrenergic receptor.
Giant pandas use their thumbs to grip and eat bamboo. They spend most of their time eating and save energy by not moving much. They live near streams of fresh water and have no natural predators. They reproduce once every two years. This description is an example of
Answer:
Explanation:
For many years, scientists wondered whether pandas were a type of bear, raccoon or something all their own. But plenty of genetic studies have made it clear that pandas are a type of bear, according to the San Diego Zoo.
Also called great pandas, parti-colored bears, bamboo bears and white bears, giant pandas are distinguished from other pandas by their large size and black-and-white coloring. Their bold coloring provides camouflage — giant pandas are nearly invisible in dense patches of bamboo, according to the Smithsonian National Zoo.
Giant pandas grow to be 27 to 32 inches (70 - 80 centimeters) tall at the shoulder, 4 to 5 feet (1.2 to 1.5 meters) long and can weigh up to 275 lbs. (125 kilograms), according to the San Diego Zoo Their size is about the same as an American black bear. By comparison, the giant panda's distant relative, the red panda, is only 20 to 26 inches (50 to 65 cm) tall and weighs 10 to 20 lbs. (4.5 to 9 kg).
In the wild, giant pandas are only found in the remote, mountainous regions of central China, in Sichuan, Shaanxi and Gansu provinces, according to the National Zoo. In this area, between 5,000 and 10,000 feet elevation (1,524 - 3,048 m), are the cool, wet bamboo forests that giant panda's call home. The large bears make their dens from hollowed-out logs or stumps of conifer trees found within the forest.
Answer:
This is an example of a K-selected species.
Explanation:
K-selected species are characterized by being more intelligent in comparison to their counterpart - r-selected species - saving more energy (being energy efficient), having a weaker sex drive (reproducing less) and the tendency to delay maturation.
the Blank immune system consists of cellular immunity and humoral immunity
Answer:
Adaptive Immune System
Explanation:
The adaptive immune response consists of cellular immunity and humoral immunity. They both involve specialized cells for fighting off bacteria and viruses which is what the adaptive immune system is responsible for.
Answer:
The adaptive
Explanation:
I took the test 2021 on odyssey-ware
Which feature of chytrids makes them different from the other types of fungi?
the material that strengthens their cell walls
the special digestive material they release
their use of budding to reproduce
their ability to live in dry environments
PLZ HELP!!! 30 PTZ!!
Answer:
A
Explanation:
describe what happened to China's air pollution between December and March and explain why IN YOUR OWN WORD (hint*, use what the video says about cars and factories)
Answer:
The air pollution in china decreases due to less usage of transportation and shutdown of industries.
Explanation:
From December to march, transportation and industrial work is greatly affected due to the corona virus. Due to reduction of activities in both transportation and industries, there is a lot of decrease occurs in the air pollution. We know that smoke produce by vehicles and industries are the main cause of pollution so that's why air pollution decreases between December to march..
2) The growth rate of the raccoon population in this scenario is exponential or sometimes referred to as the biotic potential. This is the maximum rate of growth without limitations that would otherwise impede growth. While small populations may grow at this rate initially, eventually it slows. What are three factors that could cause growth to slow?
Answer:
competition, predation, natural disasters
Explanation:
The three factors that have the ability to cause slow growth rate of populations include competition, predation, and natural disasters.
Competition is a process whereby organisms jostle to get the share of the same resources for their growth and reproduction. It could be inter or intra-specific competition depending on if it involves organisms of different species or the same species.
Competition for limited resources in the environment of organisms results in a harmful process where organisms that are poorly adapted lose out of the race and eventually die off the population. This slows down the population growth of organisms.
Predation is a nutritional relationship between organisms in which the predator kills and feed on the prey. The presence of predators in a population of organisms limits the population from reaching its biotic potential as members of the population are killed and eaten at intervals.
Natural disasters such as disease outbreak, storm, volcanic eruption, etc also act and hinder a population from reaching its biotic potential as each time they happen, they reduce the number of organisms in the population.
Fill in the blanks with the answer that correctly completes the sentence below.
_______ and _______ can only obtain food through consuming other organisms.
A.
Euglena and amoebae
B.
Volvox and euglena
C.
Amoebae and paramecia
D.
Paramecia and volvox
Answer:
C. Amoebae and paramecia is the answer.
Explanation:
The correct sentence completion is c) "Amoebae and paramecia", as they are the organisms that can only obtain food through consuming other organisms unlike Euglena which can both perform photosynthesis and take up nutrients heterotrophically.
Amoebae and paramecia can only obtain food through consuming other organisms. The correct completion for the sentence is: c) Amoebae and paramecia can only obtain food through consuming other organisms. This indicates that both amoebae and paramecia are heterotrophic organisms, which means they do not produce their own food through photosynthesis but instead rely on other sources for nourishment.
In contrast, Euglena, as mentioned within the Euglenozoans information, can operate as mixotrophs. When light is available, they can perform photosynthesis, but in its absence, they switch to heterotrophy and take up organic nutrients from their environment. Therefore, they would not fit this sentence as they are capable of photosynthesis under certain conditions.
Ras is a GTP-binding protein that is often defective in cancer cells. A common mutation found in cancer cells causes Ras to behave as though it were bound to GTP all the time, which will cause cells to divide inappropriately. From this description, the normal Ras gene is _____. a proto-oncogene. an oncogene. a proto-tumor suppressor gene. a gain-of-function mutation. a tumor suppressor.
Answer:
a proto-oncogene.
Explanation:
The protooncogenes are genes capable of causing cancer when they are activated to oncogenes by mutations that dysregulate their functions. In this case, the mutation in the Ras is a GTP-binding protein convert it to an oncogene that stimulates the cell proliferation mechanism
.
Final answer:
The normal Ras gene is an oncogene that can cause uncontrolled cell division and potentially cancer when mutated.
Explanation:
The normal Ras gene is an oncogene. Oncogenes are genes that have the potential to cause cancer when they are mutated. In the case of the Ras gene, when it is mutated and behaves as though it were bound to GTP all the time, it causes uncontrolled cell division, leading to inappropriate cell proliferation and potentially the development of cancer.
When two objects are near each other, how would increasing ones objects mass affect it?
Answer:The gravitational force of the object would increase
Explanation:
Hope this helps
Answer: c, gravitational force will increase
Explanation:
A gene is a segment of DNA on a chromosome. How are genes related to the proteins made by a cell?
A.
The structure of the genes in a cell determines the structure of the proteins made by the cell.
B.
All genes in a cell have the same exact structure, but each gene codes for a different set of proteins.
C.
All genes in a cell have the same exact structure, so all genes code for the same exact set of proteins.
D.
The structure of the genes in a cell is unrelated to the structure of the proteins made by the cell.
The structure of the genes in a cell determines the structure of the proteins made by the cell.
What is DNA?DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.
The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people.
Therefore, The structure of the genes in a cell determines the structure of the proteins made by the cell.
To learn more about DNA, refer to the link:
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Select the scenarios that describe a biotic factor that is density dependent. Select the TWO answers that are correct.
1.Fir trees grow in number, increasing the amount of food available for moose.
2.Heavy and continuous rains flood the land, submerging habitats.
3.Lightning strikes a tree and begins a fire that clears the land.
4.Ticks infesting moose weaken the moose's health and reproductive success.
5.Frigid temperatures flow into the area, causing hypothermia and death.
The scenarios that describe a biotic factor which is density dependent are: fir trees growing in number, increasing the amount of food for moose and ticks infesting moose, weakening the moose's health and reproductive success. They are considered density-dependent factors as their effects change based on the population size. They are biotic factors as they pertain to living features of the environment.
Explanation:In the context of ecology, density-dependent factors include any factor whose effects on the population increase or decrease depending on the size of the population. Therefore, the correct answers are:
Fir trees grow in number, increasing the amount of food available for mooseTicks infesting moose weaken the moose's health and reproductive successIn these instances, the factor's impact changes according to the population size (number of moose). In the first scenario, more food becomes available when the fir population expands, which would generally allow for a growth in the moose population. In the second scenario, as the moose population grows, the tick infestation becomes more severe, harming the moose population's health and reproduction.
These are biotic, density-dependent factors because the impact changes based on the number of organisms and the factors are living features of the environment.
Learn more about Density-dependent Factors here:
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Mites often attach themselves to flies, wasps, or beetles for free transportation. The flies, wasps, and beetles are not impacted. What type of relationship is this?
Answer:
It is Mutualism
Which of the following statements best describes the significance of the ocean to humans?
Answer:C
Explanation:
Answer:
The ocean is a source of oxygen, water, food, minerals, and other resources.
Explanation:
Humans depend on the materials that the ocean provides. Most importantly, the ocean's microscopic algae create the majority of the world's oxygen. Without this oxygen, most forms of life on Earth would die.
The ocean also provides humans with resources such as water, food, minerals, and resources such as oil.
Luis created a clay model of Earth. To show how Earth rotates, Luis wants to use a toothpick to represent Earth’s axis of rotation. Where should Luis place the toothpick?
Answer:
Vertically through the center of Earth, slightly to the side of each pole
Explanation:
Final answer:
Luis should place the toothpick through the North and South Poles of his clay model Earth at an angle to accurately show Earth's axis of rotation.
Explanation:
To represent Earth's axis of rotation using a toothpick on a clay model, Luis should place the toothpick through the model to connect the North and South Poles. Just like the real Earth, the axis of rotation runs from the North Pole to the South Pole. Luis should ensure that the toothpick is placed at a slight angle (approximately 23.5 degrees from the vertical), as this represents Earth's actual tilt relative to its orbit around the Sun. When Luis spins his model, this setup will mimic Earth's rotation from west to east.
What is part of the appendicular skeleton?
Final answer:
The appendicular skeleton comprises the bones of the upper and lower limbs, along with the pectoral and pelvic girdles.
Explanation:
The appendicular skeleton, a pivotal component of the human skeletal system, encompasses the bones that form the framework for the upper and lower extremities. Comprising the arms, forearms, hands, thighs, legs, and feet, it is instrumental in executing a diverse range of movements essential for daily activities. Integral to the appendicular skeleton are the pectoral girdle, or shoulder girdle, and the pelvic girdle, which serve as anchor points for the limbs, connecting them to the axial skeleton—the central core comprised of the skull, vertebral column, and ribcage.
These girdles not only provide a structural foundation for the limbs but also play a crucial role in maintaining balance and coordination. Beyond locomotion, the appendicular skeleton serves as a protective shield for vital organs, enclosing and safeguarding the delicate structures within the limbs. This intricate interplay between the axial and appendicular components ensures the body's ability to navigate its environment with precision, while simultaneously offering resilience and support for a wide array of physical activities.
The PCR primer ‘D7S820’ is used to amplify the D7S820 locus. Using this gel below, determine whether each person (M1, P1, P2, C1) is homozygous or heterozygous at this locus. Also determine the size of each person’s amplicons. Using this gel, you can determine paternity. M1 is the mother. C1 is the child. Is P1 or P2 the father of C1? Explain how you made this determination. If you were actually determining paternity, would you use one PCR primer? Why?
Answer:
1) M1 is heterozygous since it contains 2 bands, which means that it contains one recessive and one dominant allele
P1 is homozygous for this locus, since it contains a single band or is known to be homozygous for the locus or gene.
P2 is hetozygous for this locus because two bands appear in which each band represents one allele for the gene.
ChildC contains two gel bands, representing two alleles and is therefore heterozygous
P1 is the father of the child C1, if we look at the gel, each father shows a similar band, one coinciding with the mother and the second with the father p1
As for the paternity study, the PCR test is not useful, since it provides asymmetric results, thus only one strand information will be provided, and because the DNA is double-stranded, a more complete study is required.:
A newspaper headline reads "Large Drainage of the Everglades Planned" . What would be the negative impact of this plan on South Florida?
A. new land for agriculture
B. rationing of the water supply
C. elimination of pests such as mosquitoes
D. more room for development of real estate
Answer:
Option A, new land for agriculture
Explanation:
Everglades system was carved by nature to hold water. It lies at the conflux point of two large drainage ridge a) western inland ridge and b) Eastern coastal ridge and hence comprises of a broad shallow valley sloping. The purpose of draining Everglades in Florida was to empty a swampland covering a huge area of 4,000 square miles by digging canals in order to create farmland. The water for this farmland can be drawn by the plantation or it will be extracted and allowed to flow into the ocean.
Hence, option A is correct
Si Se Sumerge En Un Vaso De Agua Una Piedra, Un Bolígrafo Y Un Tajalapiz. ¿Que Sucede?.
Answer:
Al introducir una piedra en agua, está se va al fondo del vaso, por que es más pesada que el agua
Al introducir un bolígrafo, este flota, por que es más liviano que el agua
Si se introduce en agua un tajalapiz se evidenciará un proceso de corrosión del metal
Debido a la reacción con el agua, sin embargo el efecto será más evidente si se agrega sal a la mezcla
Answer:
Si se sumerge en un vaso de agua una piedra, un bolígrafo y un tajalapiz , la piedra y el tajalápiz se hundirán, pero el bolígrafo probablemente flote, según cuán pesado sea.
Explanation:
Que algunos elementos se hundan o floten en el agua depende de la masa que tienen, es decir, de su peso. A través de este experimento es posible inferir cuáles de los elementos son más pesados, según el tiempo que tarden en llegar al fondo del vaso de agua.
Por otro lado, también es posible identificar la masa de cada uno de los objetos si se los sumerge a cada uno por separado.
En el caso del tajalápiz, también es posible analizar el fenómeno de la oxidación si el mismo es de metal. Colocando sal en el agua y viendo el fenómeno que ocurre al desprender burbujas.
2. When there is an imbalance in a body system, and the body cannot maintain homeostasis, how might other systems respond?
Answer:
Read the explanation
Explanation:
A very common type of imbalance in the human body that disrupts homeostasis is diabetes. In the body of a diabetic, the endocrine system has a hard time maintaining proper glucose levels in the blood. So, a person has to monitor their glucose levels very carefully, to make sure that they stay healthy. However, this is only one of many examples. I hope this helps you!
What is fertilization?
Fertilization is the union of sperm and egg cells, forming a zygote that develops into an embryo through cell division.
Fertilization is the fusion of a sperm cell with an egg cell, resulting in the formation of a zygote. This process combines the genetic material from both the male and female gametes to form a single diploid cell, which then undergoes rapid cell division to develop into an embryo. In human reproduction, fertilization typically occurs in the fallopian tubes, where a sperm cell penetrates the egg cell's protective layer and fuses with it. The successful fertilization of an egg marks the beginning of pregnancy and initiates the developmental process that eventually leads to the formation of a new individual.
What is two-point discrimination? Choose the correct option. A. The average distance between two points that can be differentiated by the somatic sensory system B. The distance between two points that cannot be differentiated by the somatic sensory system C. The greatest distance between two points that can be differentiated by the somatic sensory system D. The smallest distance between two points that can be differentiated by the somatic sensory sy
Answer: D. The smallest distance between two points that can be differentiated by the somatic sensory sy
Explanation:
the discrimination of two points is a test that assesses the possibility of distinguishing the contact of two separate points that are applied at the same time on the skin, the purpose is to define the minimum distance of separation with which the person can differentiate the separated stimuli
Answer:
The correct option is D:
"The smallest distance between two points that can be differentiated by the somatic sensory system"
Explanation:
The two-point discrimination is defined as the ability to tell the difference between two closely placed distinct points that are touching the skin. Usually very sharp points are used to test this during a neurological exam. It is done to check how many nerves are concentrated in that particular area of skin. The minimum distance at which you can recognize two points as two and not one differs for different parts of the body. For example, the finger tips are more sensitive in this regard than the palm of the hand.
Hope that answers the question, have a great day!
Cystic fibrosis is an autosomal recessive disease where mucus develops in the lungs, liver and the pancreas. Which Punnet Square would have 25% of the offspring be homozygous dominant?
A)
B)
C)
D)
Answer:
A
Explanation:
B and D are incorrect because 0% of the offspring would be homozygous dominant
C is incorrect because 50% of the offspring would be homozygous dominant
that leaves A as the only correct answer which makes sense because only the first square is AA which is 25% of the whole
What is your hypothesis regarding difference in urine "chloride" concentration between subjects who drank water and subjects who drank a sports drink? Briefly state the physiologic basis for your prediction. Did your results support your prediction? If not, provide a possible explanation.
Answer:
Chloride concentration in urine is more who drank sport drink as compared to a person who drank normal water.
Explanation:
Chloride concentration in urine is high who drank sport drink as compared to a person who drank water because in sport drink there is more concentration of salts are present which is required our body. Due to more salts present in the sport drink, more chloride is present in urine due to the removal from the body while normal water has less amount of salts so urine has less concentration of chloride in urine.
Answer: there is an increased chloride content in subjects who drank sport drinks compared to those who drank water.
Explanation:
Chloride concentration in urine is high in subjects who drank sport drink as compared to a subject who drank water because more concentration of salts are present in sport drinks which is required our body. Due to more salts present in the sport drink, more chloride is present in urine due to the removal of excess chloride from the body while normal water has less amount of salts and also aid in diluting Cl content which makes the urine less concentrated.