According to genetic theory, the blossom color in the second generation of a certain cross of sweet peas should be red or white in a 3:1 ratio. that is, each plant has probability 3/4 of having red blossoms, and the blossom colors of separate plants are independent. (a) what is the probability that exactly seven out of ten of these plants have red blossoms? (round your answer to four decimal places.)

Answers

Answer 1
The formula that we will going to use is the formula of combination and this is can be done using the scientific calculate.
n = 12 
p = 3/4 = 0.75
q = 1/4 = 0.25
P(red) = 12c9 * 0.75^9 * 0.25^3
       = 220 * 0.07508 * 0.015625
       = 0.2580

So the probability that exactly seven out of ten of these plants have red bloossoms is 0.2580. 

The answer in this question is 0.2580

Related Questions

Consider two populations of fish that live in separate ponds and differ in the frequency of alleles at a locus. after a flood, the two ponds become connected by a stream and some fish are able to move between the ponds. what will happen to allele frequencies at this locus in the two populations?

Answers

The allele frequencies in the two ponds will become more similar to each other. Migration has two major effects . First it causes the gene pool of populations to become more similar. Second , migration adds genetic variation to population. Different alleles may arise in different populations owing to rare mutational events and these alleles can be spread ti new populations by migration, increasing the genetic variation within recipient population.

What can you conclude about the relationship between toxin secretion and culture density in s. aureus? select the three statements that are true. what can you conclude about the relationship between toxin secretion and culture density in s. aureus? select the three statements that are true. cultures grown at high density secrete significant amounts of toxin. the transition from culture densities that do not secrete toxin to those that do secrete toxin occurs quickly after a threshold is reached. cultures grown at low density do not secrete significant amounts of toxin. there is no relationship between culture density and the amount of secreted toxin for s. aureus. the relationship between culture density and toxin secretion is linear over the range of culture densities sampled?

Answers

The following conclusions can be made about the relationship between toxin secretion and culture density for S.aureus:
1. Culture grown at high density secretes significant amount of toxin.
2.Culture grown at low density does not secretes significant amount of toxin.
3. The transition from culture density that do not secrete toxin to those that secret toxin occur quickly after a threshold is reached. 
Final answer:

In S. aureus, cultures grown at high density secrete significant amounts of toxin, the transition to toxin secretion occurs quickly after reaching a threshold, and cultures grown at low density do not secrete significant amounts of toxin.

Explanation:

Based on the information provided, we can conclude the following about the relationship between toxin secretion and culture density in S. aureus:

Cultures grown at high density secrete significant amounts of toxin: This statement is true, as mentioned in the information provided.The transition from culture densities that do not secrete toxin to those that do secrete toxin occurs quickly after a threshold is reached: This statement is true, indicating that there is a distinct threshold for toxin secretion.Cultures grown at low density do not secrete significant amounts of toxin: This statement is also true, indicating that toxin secretion is dependent on culture density.

One of the liver's main functions is to detoxify potentially toxic substances. Given this information, which organelle(s) would you expect liver cells to have in abundance? Explain.

Answers

The answer to this question would be: smooth endoplasmic reticulum

When detoxifying a substance, the liver will need some enzyme to break down the chemical or to change its structure so it will be less toxic. That mean liver will need a high amount of enzyme. Enzyme is protein, and protein is made by endoplasmic reticulum.

Describe different ways that cell shape can be modified so that diffusion rate will be increased

Answers

In order to increase the rate of diffusion of materials in and out of the cell, the following modification can be done to the cell:
1. the shape of the cell can be changed to one that has high surface area to volume ration, for example sphere.
2.The cell can also divide into two in order to increase the surface area to volume ratio. 
Final answer:

To increase the rate of diffusion, cells can modify their shape to maximize surface area and minimize distance traveled by substances. This can be done by making the cell smaller or flattened. Other factors like temperature, membrane thickness, and the nature of the substance diffusing also come into play.

Explanation:

Cell shapes can be modified to increase diffusion rate in several ways. The rate of diffusion can be increased by maximizing the surface area of the cell. This can be achieved by the cell being smaller or flattened, as this extends the surface area while minimizing the distance that substances must travel to reach different parts of the cell. As a cell becomes larger, its surface area-to-volume ratio decreases, which could limit the rate of diffusion. Therefore, cells can increase efficiency by developing organelles that perform specific tasks.

Temperature and membrane thickness can also affect diffusion rates. Higher temperatures can increase molecule movement, thus enhancing the diffusion process. However, a thicker plasma membrane could reduce the diffusion rate. Furthermore, certain substances such as nonpolar or lipid-soluble materials can pass through plasma membranes more easily than polar materials, which would speed up the diffusion process.

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The population of the earth is roughly six billion people. if all free electrons contained in this extension cord are evenly split among the humans, how many free electrons ( ne) would each person

Answers

assuming there is 1 free electron for every copper atom in the extension cord, and assuming there is about 3 grams of copper in the cord, there will be 300000000000000 free electrons for every one of 6 billion people.

Each person would receive [tex]\(4.17 \times 10^{12}\)[/tex] free electrons.

To solve this problem, we need to know the number of free electrons in the extension cord.

Let's assume that the extension cord contains [tex]\(2.5 \times 10^{22}\)[/tex] free electrons.

Now, we'll divide the total number of free electrons in the extension cord by the population of the Earth:

[tex]\[\frac{2.5 \times 10^{22}}{6 \times 10^9} = \frac{2.5 \times 10^{22}}{6,000,000,000} \approx 4.17 \times 10^{12}\][/tex]

Each person would receive approximately [tex]\(4.17 \times 10^{12}\)[/tex] free electrons.

Consider the wetland habitat pictured here. Imagine a very hot summer with little rain. What would be the limiting factor for the populations of all of the animals living here? A) competition B) food Eliminate C) space D) water

Answers

The right answer is actually D)water

Answer:

D) water

Explanation:

A very intense summer region with little rainfall causes a decrease in the amount of water for the animals. This is because intense summer evaporates much of the water available to animals, as in this region, rain is scarce, evaporated water takes time to return to the ground, which can cause a severe drought that makes water a limiting factor for animal life.

Therefore, we can conclude that the correct answer to your question is the letter D.

Why are dew and frost rarely seen in the afternoon? the dewpoint is typically highest in the afternoon the dewpoint is typically lowest in the afternoon the relative humidity is typically highest in the afternoon the relative humidity is typically lowest in the afternoon?

Answers

The appropriate answer is the dew point is lowest in the afternoon. Dew point refers to the stage at which water droplets from via the process of condensation. It is the temperature to which the air must be cooled to allow this process of condensation. Humidity refers to the amount of water vapor contained in the surrounding air.

Final answer:

Dew and frost are rarely seen in the afternoon because the air temperature is too high to reach the dew point, which is required for their formation, and the relative humidity is typically lower due to the increased capacity of warmer air to hold water vapor. The correct statement is "the relative humidity is typically lowest in the afternoon".

Explanation:

Why are dew and frost rarely seen in the afternoon? Dew and frost formation is significantly influenced by air temperature, relative humidity, and the dew point. The dew point is the temperature at which air needs to cool down for water vapor to condense into liquid water or solid ice crystals. In the evening and early morning hours, when the air temperature drops, it often reaches the dew point, leading to the formation of dew or frost if the temperature is below freezing. Conversely, during the afternoon, the air temperature is usually at its highest, leading to a lower likelihood of reaching the dew point. Additionally, the relative humidity is typically lower in the afternoon because warmer air can hold more water vapor, making it less likely for dew or frost to form.

The highest relative humidity generally occurs around sunrise when the air temperature is at its coolest, not in the afternoon. This is because cooler air cannot hold as much water vapor, so relative humidity percentages are higher. As the day progresses and temperatures rise, the capacity for the air to hold water vapor increases, and the relative humidity decreases, thus reducing the chance for dew or frost to form during the afternoon.

Is extensive loss of hair observed in humans and whales an example of homoplasy or homology?

Answers

Homoplasy and homology are phylogenetic traits in the study of evolution. Homology refers to having similar traits (common characters) due to common ancestry where as homoplasy refers to similar traits or characters that are not due to common ancestry.
Extensive loss of hair observed in humans and whales is an example of homoplasy because the reason of hair fall is other than common ancestry.

The sides of a composite- cone volcano have which feature

Answers

The sides of a composite cone volcane have FUMAROLES.
Fumaroles refers to an opening on or near a volcano through which hot gases are released into the environment. Fumaroles are usually found in active volcanoes most especially during period of rest before the next eruption. The gases released by the fumaroles include: carbon dioxide, sulphur dioxide, hydrogen chloride and hydrogen sulphide.

fumaroles  is the answer i think

Which part of a person's eyes are photoreceptors that help her see the path in front and the trees around her when she is walking in the woods at night? the lens the cones the rods the pupils?

Answers

The answer to this question would be: the rods
The eye have two kinds of photoreceptors, the rod cells and cone cells. Cone cells are used for distinguishing different color. There are three kinds of cone receptors and their interaction make the perception of color.
Rod cells is used for the black and white vision. This cell is more sensitive and only active when the light intensity is low, such as in the night. 

As previously mentioned, this toxin can cause a fatal disease known as botulism. if the toxin becomes systemic, it can block the release of ach from nerves in other locations. why do you think botulism can be fatal?

Answers

Botulin can be fatal because it can block the release of acetylcholine from nerves ending. Blockage of acetylcholine at the peripheral nerve endings will ensure that the nerves are not able to stimulate the muscles. The toxin also affect other systems in the body leading to respiratory arrest which can result in death if the trend is not promptly reversed.

By the mid-miocene, monkeys became more common than apes because __________.

Answers

Monkeys became more common than apes in the mid-Miocene as a result of environmental changes such as forest reduction and climate cooling and drying, which favored their adaptability, diverse foraging behaviors, and faster reproduction rates.

By the mid-Miocene, monkeys became more common than apes due to a variety of environmental and evolutionary factors. The Miocene Epoch experienced significant climatic change that led to the reduction and fragmentation of forests in Africa. These changes created more open and diverse habitats which favored the generalist foraging behaviors and environmental adaptability of monkeys. As conditions became drier and cooler due to factors like the uplift of the Himalayan mountain chain, the previously extensive forests diminished and grasslands expanded, limiting the habitat suitable for apes. Monkeys thrived due to their greater adaptability and diversity in exploiting both arboreal and terrestrial niches.

Monkeys, especially the cercopithecine or cheek pouch monkeys such as macaques and baboons, could also reproduce faster than apes, giving birth every two years compared to the four or five years for gorillas and chimps, respectively. Their ability to exploit varied resources and survive in these changing conditions allowed monkeys to survive and thrive in Africa and Asia despite environmental changes that drove many ape species to extinction.

According to chargaff's rule, if the dna of a species contains 20% adenine, what percent of guanine will it

Answers

It will always epual the same amount of Guanine

1. If you approach a railroad track where the gate has come down or lights are flashing, you should stop __________

Answers

You should stop the car
I dont know what the choicies are but I would say immedietly.
1. If you aprouch a railroad track where the gate has come down of the lights are flashing, you should stop imedetly

Why is it important that specific tissues respond to insulin in different ways?

Answers

The insulin can be a hormone, it is a substance envoy created in one a player in the body to have an activity on another. It is a protein in charge of directing blood glucose levels as a feature of digestion. The body fabricates insulin in the pancreas, and the hormone is discharged by its beta cells, fundamentally in light of glucose. 



The imperative that particular tissues react to insulin in various ways is that the particular tissues may react to insulin diversely because of DNA creation since DNA encoding for insulin receptors is communicated distinctively in tissues. This guarantees each tissue gets the measure of insulin that it needs

it important that specific tissues respond to insulin in different ways because the cells in the body really need sugar to work optimally. however, it is unfortunate that cells cannot directly convert sugar into energy the body needs.

Further explanation

Insulin has an important role in our body to convert sugar (glucose) from carbohydrates consumed to energy, and also can function to store glucose as a necessity in the future. Maintaining the function of insulin is very important as controlling blood sugar levels so that the body does not jump too high or go down too low.

for the workings and functions of the hormones insulin and glucagon such as yin- yang in blood calcium levels. These hormones can work together to balance blood sugar, and keep it at the level needed by the body.

the cells in the body really need sugar to work optimally. however, it is unfortunate that cells cannot directly convert sugar into energy the body needs.

it can be concluded that insulin is important for the body to use by humans to convert the sugar that humans eat into energy. If this hormone is not present, then sugar is just circling in the blood.

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Specific Insulin; brainly.com/question/5936206, https://brainly.com/question/13989526

Details

Class: College

Subject: Biology

Keywords: Insulin, Body, Blood

What does exercise create in muscle fibers.... hormones, lactic acid, enzymes, red blood cells, tears?

Answers

this is the answer check it out

Exercise creates muscle fibers and lactic acid, if the workout is done vigorously, that is the second option, as normal exercise can improve the enzyme activity of the muscles and improve their health.

What is exercise ?

Lactic acid is produced in the muscles during intense exercise when the body's demand for energy exceeds its oxygen supply, so lactic acid can build up in the muscles and cause fatigue and discomfort, and it improves enzyme function and plays an important role in breaking down carbohydrates and fats to produce energy for the muscles, but it can cause microscopic damage to muscle fibers, resulting in muscle soreness and tears, which are usually the result of traumatic injury or overuse.

Hence, exercise creates muscle fibers and lactic acid, if the workout is done vigorously, that is the second option.

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Several studeies note that older siblings have a _______influence on the drug use of younger siblings thatn pare =nts have

Answers

Answer:

Higher

Explanation:

Hope this helps

According to ecological individualism, it would be morally justifiable to allow hunters to kill some deer to insure the wellbeing of an ecosystem:

Answers

According to ecological individualism, it would be that morally justifiable to allow hunters to kill some deer to insure the wellbeing of an ecosystem. The statement is false because ecological individualism mean creatures have moral status, such as a deer.

Besides cardiac muscle, what other tissue type possesses pacemaker cells?

Answers

Smooth muscle is another type of tissue that possesses pacemaker cells beside the cardiac mucle. It has a pacemaker activity that can remove the vibration of waves without the present of some external stimuli. In addition, smooth muscle can also start a spontaneous contraction. 

 

in a eukaryote, the portion of the cell outside the nucleus is called the? a. tissue b.nucleus c.cytoplasm d.cells e.organs f. organelles g.systems h.organisms

Answers

The answer would be cytoplasm. Thanks for the question!
Final answer:

In a eukaryotic cell, the part of the cell outside the nucleus is known as the cytoplasm. It houses the cell's organelles and is involved in prime cellular processes.

Explanation:

In a eukaryote, the part of the cell outside the nucleus is called the cytoplasm. This is an area within the cell that houses the cell's organelles, excluding the nucleus, and is involved in numerous cellular processes. For example, some of these processes include protein synthesis, glycolysis, and cell division. The cytoplasm serves as a medium for these organelles to remain suspended and perform their respective functions. Option (c) is therefore the correct answer to your question.

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why do the gas giants have more moons than the terrestrial planets?

Answers

Answer:

They are larger and so they have more gravity (apex)

Explanation:

Answer:

They have a bigger gravitational pull and they are larger

Explanation:

Apex

Which biotic factor would limit the antelope population in the African savanna?

Answers

It might be Lions if that's an answer choice then yeah 
Any predator of the Antelope population/species of that area, or any human pollution could also affect it. Hope this helps.

What is the ploidy level of the spores produced in the sporangium?

Answers

The ploidy level of the spores produced in the sporangium is haploid 

The spores produced in the sporangium are haploid (1n), formed by meiosis within a diploid sporophyte (2n), which is part of a plant's life cycle.

The ploidy level of the spores produced in the sporangium is haploid (1n). This is because in the life cycle of a plant, the sporophyte stage is diploid (2n) and produces spores through the process of meiosis. During meiosis, the chromosome number is halved, resulting in haploid spores. These spores then can develop into a gametophyte, which is the haploid stage of the plant capable of producing gametes (sperm and eggs).

Illustratively, when a zygospore germinates, it gives rise to a sporophyte which bears the sporangium. The sporangium's role is to produce spores by meiosis. As the diploid nuclei undergo meiosis within the sporangium, they form haploid spores that are eventually dispersed into the environment. These haploid spores, upon germination, develop into haploid gametophytes, completing the cycle.

In anova analyses, when the null hypothesis is rejected, we can test for differences between treatment means by _____________.doing a t testdoing an additional anovaconstructing confidence intervalsadding another treatment

Answers

Doing a t-test tests for differences between means, and may be done only if the null hypothesis is rejected. Additional ANOVAS test different hypotheses, confidence intervals are for specifying parameters, and another treatment is a new experiment.

Why is it that bacterial ribosomes can begin translation before mrna synthesis is completed, but eukaryotic ribosomes cannot?

Answers

Answer: Bacterial DNA is directly exposed to the cytoplasm, which has the ribosomes on which protein synthesis takes place. As the mRNA molecule proceeds for synthesis, ribosomes immediately attach to the free 6' end of the RNA transcript and begin translating it into protein.
Final answer:

Bacterial ribosomes can begin translation before mRNA synthesis is completed because transcription and translation occur in the same place, whereas in eukaryotic cells they occur separately with eukaryotic mRNA needing to be processed and transported from the nucleus to the cytoplasm before it can be translated.

Explanation:

The key difference between bacterial ribosomes and eukaryotic ribosomes in terms of translation lies in their cellular structures and mechanisms. In simpler, prokaryotic cells like bacteria, both transcription and translation occur in the same cytoplasmic space allowing for simultaneous RNA synthesis and protein synthesis. This process forms polysomes or polyribosomes, where multiple ribosomes translate a single mRNA sequence concurrently, leading to rapid protein production.

In contrast, eukaryotic cells have a more complex cell structure, with the cellular process of transcription taking place in the nucleus and translation occurs in the cytoplasm. As a result, eukaryotic mRNA is transported out of the nucleus after completion of transcription and modifications such as the addition of a 5' cap, poly-A tail, and removal of introns in a process known as splicing. Consequently, eukaryotic ribosomes can only start translation after mRNA synthesis is completed, leading to a decoupling of transcription and translation in eukaryotes.

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In order for a plant cell to elongate, what two things must occur

Answers

A plant cell consists of a cell wall, chloroplast and vacuoles that makes it different from the animal cell.
For a plant cell to elongate, two things that facilitates the process are light and phytohormones. It occurs when individual cells and group of cells grow longer.
In order for a plant cell to elongate, two things that must occur are:
1. temporary loosening of cell wall
2. pumping hydrogen ions across the cell membrane.

The correlation between a​ cereal's fiber and potassium contents is requals= what fraction of the variability in potassium is accounted for by the amount of fiber that servings​ contain?

Answers

I found the whole exercise on the internet and R=0.903.
According to mathematics, the variability in potassium can be explained by the amount of fibre that the servings contain. By doing [tex] R^{2} [/tex] we find that fraction.
[tex] 0.903^{2} [/tex]=0.8154
THe answer is R=.9030

Curvatures of the spine serve the body by ________.

Answers

Spine or Vertebral column is composed of a series of 31 bones known as vertebrae.Spine or Vertebral column is composed of a series of 31 bones known as vertebrae. Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock.

Curvatures of the spine serve the body by providing stability, shock absorption, and maintaining proper alignment and balance.

The cervical, thoracic, lumbar, and sacral curves make comprise the spine. These curvatures support the body, protect the spinal cord, and enable efficient movement.

Cervical and lumbar curves are concave (inward), while thoracic and sacral curves are convex (outward). Walking, running, jumping, and lifting are easier with this setup. The curves absorb shock, protecting the spine and intervertebral discs.

Spinal curvatures also preserve balance and alignment. They centre the head over the pelvis, improving posture and minimising muscle, ligament, and joint tension. The curves help maintain the spine's natural S-shaped alignment, which distributes stresses uniformly and prevents pressure on specific places.

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What trait do the mushroom and gecko share that the tree lacks?

Answers

Both the mushroom and the gecko are heterotrophs: they need to acquire their food from other sources. The tree, on the other hand, is an autotroph--it gains most of its nutritional needs through photosynthesis.

Both the mushroom and the gecko are heterotrophs: they need to obtain their food from other bases. The tree, on the other arrow, is an autotroph it earns most of its nutritional needs through photosynthesis.

What trait do a gecko fungus and palm tree share?

A gecko, fly agaric (fungus), and a palm tree all have compartments with nuclei, but a gecko and fly agaric are both heterotrophic while a palm tree is a photosynthetic autotroph.

Thus, Both the mushroom and the gecko are heterotrophs, they need to gain their food from other seeds.

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Which term names a change in the environment that causes an organism to take action? A. growth B. Response C. Genetics D. Stimulus

Answers

D i believe is the correct answer if i remember from my biology class
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