An allele is one of the alternative forms of a gene that governs a trait. If a fern plant is heterozygous for a particular trait, how can the alleles that control that trait be described? A. one dominant, one recessive B. two dominant C. three recessive, one dominant D. two recessive

Answers

Answer 1
"Hetero" means different. So the plant has two different alleles; one dominant and one recessive as in (A).
Answer 2

Answer:

The correct answer is A. one dominant, one recessive

Explanation:

A gene can have many alternative forms called alleles. These alleles can be present in homozygous condition or heterozygous condition. In homozygous condition chromosome contains two same forms of an allele of a gene. In heterozygous condition a chromosome contains two different forms of an allele of a gene.  

These alleles can be dominant or recessive. A dominant allele can be expressed in both homozygous and heterozygous condition, but a recessive allele will only express in homozygous condition.

So If a fern plant is heterozygous for a particular trait then it contains one dominant and one recessive allele because in heterozygous condition two different forms of allele is present. Therefore the right answer is A.


Related Questions

Insufficient intake of folic acid during pregnancy increases the risk of having a baby with

Answers

The answer to this question would be: spina bifida

Folic acid is important in making the neural tube. Deficiency in folic acid will result in a variety of neural tube defects like spina bifida. Folic acid should be consumed before planning pregnancy as the neural tube is formed in the first 3 weeks of pregnancy. Folic acid can be found in vegetables with green leaves.
Insufficient folic acid intake increases the risk of having a baby with a neural tube defect, spina bifida, anencephaly. Folic acid is also acceptable in synthetic form.

SUBJECT: SCIENCE

A rock displaces 1,500 mL of water. The volume of the rock is:

A. 1,500 cm³

B. 15 cm³

C. 150 cm³

D. 0.0015 cm³

Answers

Volume of rock = volume of water displaced = 1500

It's A..........................Have a good day

what is the control in the experiment shown in figure 19-4?

Answers

The control is the distilled water.

i believe that it's distilled water!

All of the factors listed are abiotic factors of this underwater ecosystem EXCEPT the A) sunlight. B) water currents. C) fish population. D) water temperature.

Answers

To be clear, abiotic means non living things. The only thing that is living in the answer choices is C) fish population. Hope that helps.
C) Fish population

It’s the fish population because it involves living things where as sunlight is not living as well at the water currents and water temperature

What memorable line does taylor first utter in the presence of the apes?

Answers

I don't know if this question fits in biology, but in the plant of the apes when he gets captured, he says “Take your stinkin' paws off me you dam*ed dirty ape.”

What are the functional differences between the commands ping and tracert?

Answers

The main difference between the common Ping and Traceroute commands is that Ping is a quick and easy way to tell you if the destination server is online and estimates how long it takes to send ands receive data to the destination.

Explain the importance of the change in minute ventilation with exercise.

Answers

The Minute ventilation is the amount of oxygen inspired by the body in a minute. Our body need more oxygen at the time of workout. As tidal volume and breathing rate increases the minute ventilation will increase as more breathes will be needed to be taken to meet the high demand for oxygen.So it is our basic need.

Refer to model 1. identify at least two organic functional groups in a phospholipid molecule answer

Answers

A phospholipid is a type of lipid that is made up of two distinct regions, which are the head and the tail region. The head region is polar and is made up of the phosphate group, choline and glycerol . The tail region is non polar and is made up of fatty acids.
The organic functional groups that can be found in phospholipids are carboxyl group, hydroxyl group and phosphate group.

The movement of a magnetic pole away from the actual pole

Answers

do you have and answer to pick from???

All magnets have two poles, where the lines of magnetic flux enter and emerge.Because opposite poles attract, this definition means that the Earth's North Magnetic Pole is actually a magnetic south pole and the Earth's South Magnetic Pole is a magnetic north pole

Agriculture and medicine are affected by science? True or False???

Answers

I believe this is true?
It's true is what say

What are some possible consequences of preventing prescribed burns and natural wildfires?

Answers

Some of the possible consequences of preventing slash and burns and natural wildfires, is that the soil around the old forest may start to erode and lose its mineral wealth and resources. Also, if not controlled, plant life can actually take over human-built structures, and may destroy the structures. Some examples includes: "The Old Piano Tree" in California

hope this helps

Final answer:

Preventing prescribed burns and natural wildfires can lead to the loss of carbon from the atmosphere and biodiversity. It can also result in an increase in flammable grass biomass and high levels of fire activity.

Explanation:

The consequences of preventing prescribed burns and natural wildfires can have significant impacts on ecosystems. One consequence is the loss of carbon from the atmosphere due to the combustion of live and dead biomass. For example, the invasion of cheatgrass in the Great Basin of the United States has resulted in a loss of carbon to the atmosphere. Another consequence is the loss of biodiversity, as intense fires easily kill a large proportion of tree species and can lead to the replacement of primary forest tree species with pioneer species. Additionally, the cessation of fire management by indigenous people has resulted in an increase in flammable grass biomass and high levels of fire activity.

Describe the volcanic-atmosphere hypothesis about the origin of life on Earth and discuss the evidence that supports this hypothesis.

Answers

The general origin of life, OoL, theories rely on a source of solid elements - carbon, phosphorous, sulfur, gases - carbon dioxide, nitrogen, hydrogen, abiotic solids and fluids, and an energy source - meteorites, comets, solar radiation or geologic activity such as volcanoes or hydrothermal vents. The energy sources are critical to apply thermal energy that could stimulate chemical and geologic activity. This is the proposed value of volcanoes in early earth origin of life, OoL, theories, which has a number of levels. Of primary value is the thermal energy given off by the volcano that can stimulate movement and chemical interaction of minerals, water, gases and compounds near the volcano. Additionally, the minerals, water, and gas given off by the volcano are considered important to produce the biochemical assembly of compounds into molecules that would then cause gradually increasingly more complex biochemical assembly, eventually leading to the OoL.

On the atmospheric level volcanoes have been considered possibly viable to support the Oparin-Haldane theory, which proposed the emission of biochemically rich gases that utilized volcanic, solar and atmospheric energy sources to precipitate biochemical molecules that led to a prebiotic soup of compounds that eventually led to the OoL.

1. There is no evidence that a prebiotic soup ever formed under any conditions.
2. There is evidence some oxygen is released in volcanic eruptions, oxygen being fatal to biochemical compounds due to oxidation.
3. The energy released by volcanoes is not regulated, so energy applied to some chemical compounds to cause assembly can just as readily destroy.
4. The flow of gas, water and mineral movement is not regulated, so the fine-tuned critical OoL chemical concentrations, colocation, coincidence and contamination are severe.
5. The processes for biochemical assembly at successively higher levels are not standard nor similar, requiring changing conditions beyond a single volcanic deposit or Darwinian "warm little pond."
6. The detail and complexity of the critical amino acids, proteins, nucleotide assemblies, cell membranes and metabolic enzymes and chemical structures are too sensitive and diverse to ever possibly have been assembled in a volcanic environment.

Consequently, volcanoes are not viable as a OoL source. This hypothesis is actively supported because of philosophical naturalism, which requires totally physical processes, which are non-existent or inadequate for OoL


Polar _____ are typically found attached to the outside of a membrane

Answers

Polar PERIPHERAL MEMBRANE PROTEINS are typically found attached to the outside of a membrane.
The membrane is majorly made up of phospholipids, which are bilayer in nature, having a polar head and a non polar tail. There are two types of membrane proteins; the integral and the peripheral protein. The peripheral protein is usually found on the outside of the membrane, attached to the polar head of the phospholipid bilayer.

where does the energy come from to make atp in the light reaction

Answers

Hello 102683Moreno, Where does the energy come from to make ATP in the light reaction, from the motion of hydrogen ions.

Answer:

from the motion of hydrogen ions

Explanation:

apex

"what is the function of the carapace? what two body systems in rats perform equivalent functions?"

Answers

The carapace or shell is an exoskeleton or external skeleton found in certain invertebrates. The carapace provides protection and rigidity to the organism. In rats the skeleton gives rigidity and protects organs. Also, the muscular system helps in maintaining shape and helps protect many organs. Hence the skeleton and muscles in rats perform equivalent functions as the carapace of other animals.

The carapace in crustaceans functions to protect internal organs and provide structure, similar to the skeletal and integumentary systems in rats, which include bones and skin respectively.

The function of the carapace is to protect the internal organs of crustaceans and provide structure to their bodies. This chitinous exoskeleton is also strengthened with calcium carbonate in many species. In rats, equivalent functions are performed by the skeletal system and the integumentary system (skin). The skeletal system provides protection to internal organs with bony structures, such as the skull protecting the brain and ribs protecting the heart and lungs, while the skin acts as a barrier to external environment, protecting against physical harm and infection.

José has just played a long, bruising football game but feels little fatigue or discomfort. His lack of pain is most likely caused by the release of

Answers

José probably doesn't feel any pain because his body, during and after exercise released endorphins which are endogenous opioids. This endorphins promote a sense of satisfaction and pleasure, and make pain and discomfort feel irrelevant.

Final answer:

José likely feels little fatigue or discomfort after a football game due to the release of endorphins, which are natural pain-relieving chemicals that induce a euphoric feeling and inhibit pain signals.

Explanation:

José's lack of pain despite the physical exertion of a football game can likely be attributed to his body's natural pain-relieving chemicals known as endorphins. Endorphins are neurotransmitters that are produced by the central nervous system and the pituitary gland. They are often released during periods of stress or discomfort, such as intense physical exercise, and act similarly to opiates in their ability to produce a pain-relieving and euphoric effect.

This is part of the body's natural response to help cope with the strain of exertion, and also contributes to a phenomenon known as 'runner's high', where athletes feel exhilarated and less aware of pain following intense physical activity. The body producing endorphins during José's football game helps to inhibit the transmission of pain signals in his nervous system and triggers a positive feeling in his body.

Joceyln has wavy hair. "she has received one allele for curly hair and" one allele for straight hair. there is a blending of both of these traits resulting in her wavy hair. this is an example of

Answers

Answer:  "codominance" .
_______________________________________

Chloroplasts of a green leaf produce sugar for what

Answers

Chloroplasts (which are always green because they contwin chlorophyll) convert Co2 and H2O into sucrose and byproduct O2 through the process of photosynthesis(creation with light energy). The resulting sugar is used as food for the plant. This is an autotrophic process. Meaning the organism produces its own food.

The human brain appears extremely wrinkled when closely examined. these wrinkles are purely cosmetic and have no actual purpose. are byproducts of old age; normal adults' brains are smooth. act as a shock-absorption device, preventing neural damage. disappear as a person progresses into late adulthood. allow a greater surface area of cortex to be included in the skull.

Answers

The answer is:  [E]:
___________________________________________________________
          "allow a greater surface area of cortex to be included in the skull."
___________________________________________________________

Deforestation is another example of human activities that affects the carbon dioxide explain how the cutting and burning of trees would affect this cycle

Answers

Reducing the plant biomass in earth seriously affects the living condition here. Plants helps to reduce the amount of carbon dioxide in the atmosphere. Therefore deforestation greatly leads  to an increased level of carbon dioxide.

What is deforestation?

Deforestation is the destruction of forests by cutting plants and burning them making there unfair to live there. It greatly impacts the ecosystem badly.

During photosynthesis, plants absorbs carbon dioxide and combine it with water forming glucose and oxygen gas. This process is taking place with the aid of light energy.

Thus, photosynthesis reduces the level of carbon dioxide in atmosphere and significantly have a role to decline global warming. Cutting trees results in exactly the reverse condition where the green house gases will intensely warm up the earth's atmosphere.

To find more on global warming, refer here:

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Deforestation and burning of forests lead to the release of stored carbon dioxide, which trees would normally absorb. This disrupts the carbon cycle, enhances the greenhouse effect, and contributes to global warming.

When trees are cut down and burned in activities such as deforestation and slash-and-burn agriculture, they release their stored carbon dioxide into the atmosphere. Typically, trees absorb CO2 from the atmosphere and convert it into biomass through the process of photosynthesis, effectively reducing the greenhouse gas levels in the air.

However, through deforestation and burning, this carbon is rapidly released, increasing atmospheric CO2 and contributing to global warming. Human activities have significantly disrupted the natural balance of the carbon cycle, leading to an increase in greenhouse gas concentrations, of which carbon dioxide is a primary component. This enhancement of the greenhouse effect is believed to be a leading cause of the current trend of climate change, which includes global temperature rises and shifts in weather patterns.

Computer software that generates three-dimensional models helps engineers make sure that the parts they design fit together.

Which definition best fits the word generates as used in the sentence?

To be a reason for
To cause something
To produce
To have a purpose

Answers

Generates, in this sentence, means "to produce." It comes from the prefix "gen-," which can be described as the "birth" of something. In this case, it can also be taken further back, to the Latin "generat," which meant "to create." Creating something can be seen as the synonym of producing an object or idea.
The answer is C. To produce

Early life corresponds to the first bacterial colonization of the digestive track, creating a microbiome that appears to play an important role in human development. what might be the effect of early exposure to antibiotics on children's development? one study followed 11,532 full-term babies all born in the county of avon (united kingdom) during 1991 and 1992. exposures to antibiotics during infancy were recorded, along with recurring measures of body mass over several years. the study found that antibiotic exposure during the first six months of life was associated with increased body mass later on, a pattern not seen with antibiotic exposure occurring after the first six months.the explanatory variable in this study is:

Answers

The examination above is called Cohort Observational Study.  The cohort study is a sort of restorative research used to explore the reasons for the malady, building up joins between chance variables and wellbeing results. Partner ponders are as a rule forward-looking - that is, they are "forthcoming" studies, or arranged ahead of time and did over a future timeframe

"when does one’s body start storing fat either by increasing the number of fat cells or by increasing the size of existing fat cells?"

Answers

The body starts storing fat by increasing the size of the existing fat cells as well as by increase in the number.

Further Explanation:

The adipocytes are the cells that store energy in the body in form of fats. The adipocytes are formed out of the mesenchymal stem cells by the process of adipogenesis. In addition to the mesenchymal stem cells, the adipocytes can also be formed form the bone cells. The adipose tissue has two major varieties; the white adipose tissue and the brown adipose tissue. The white adipose tissue has one large central droplet of fat enclosed in the cytoplasm while the brown adipocytes have several tiny droplets or fat floating in the cytoplasm of the cell.

The amino acids, glucose and fatty acids that are present in the food when goes to the intestine, stimulates the production of insulin from the pancreas. The insulin acts on the hepatocytes, myocytes and the adipocytes to stimulate the absorption of glucose, fatty acids and amino acids. It also stops the breakdown of glucose, amino acids and fatty acids. The building up of glycogen from glucose, fats from glycerol and proteins from amino acids occurs. The take up of amino acids and glucose by the fat cells followed by conversion into fatty molecules is also possible. The conversion of carbohydrates proteins into fat is less efficient then storing fat in a fat cell. The fat cells increase in size due to an increase in the fat intake of the body. The adipocytes can also divide in number when the concentration of fats in the blood stream in raised drastically.

Thus, the body starts storing fat by increasing the size of the existing fat cells as well as by increasing the number.

Learn more:

1. Learn more about fats https://brainly.com/question/1386856

2. Learn more about carbohydrates https://brainly.com/question/6947177

3. Learn more about proteins https://brainly.com/question/1420458

Answer Details:  

Grade: High School

Subject: Biology

Chapter: Biomolecules

Keywords:

Fats, adipocytes, fat cells, carbohydrate, proteins, amino acids, blood stream, insulin, pancreas, fatty acids, hepatocytes, myocytes, glycerol, glycogen, white adipose tissue, brown adipose tissue.

Final answer:

The body starts storing fat when energy intake exceeds energy output, either by increasing the number of fat cells or the size of existing ones. White fat cells store fat in a semi-liquid state and can increase in size or number. Healthy lifestyle choices are crucial to manage body fat and prevent associated health risks.

Explanation:

Understanding Body Fat Storage

An individual's body begins to store fat when the energy intake exceeds the energy expenditure. This can occur either through increasing the number of fat cells (adipocytes) or by increasing the size of existing fat cells. Unlike other cells in the body that can only store limited amounts of fat, fat cells specialize in fat storage and can expand significantly. This expansion comes from an excess of energy being converted into triglycerides, which are then stored in fat cells.

White fat cells, or monovacuolar cells, are capable of storing fat in a semi-liquid state primarily made up of triglycerides and cholesteryl ester. These cells contain a large lipid droplet and can vary in size. Once they expand about fourfold, they can divide to increase the total number of fat cells present. Furthermore, adipocytes secrete various hormones like leptin and adiponectin that influence energy balance and metabolism.

Over time, lifestyles that involve regular consumption of high-calorie food and insufficient exercise can lead to an unwanted increase in adipose tissue, which is linked to a host of health issues like type 2 diabetes and heart disease. It's important to manage energy balance through diet and exercise to prevent the chronic accumulation of adipose tissue and its associated health risks.

What kind of unconformity is produced when tilted, older strata are eroded and buried by younger strata?

Answers

An angular unconformity is produced when tilted, older strata are eroded and buried by younger strata.

What role would mitosis play in the body of an adult animal?

Answers

The answer to this question would be: replacement of old and damaged cells

The mitosis division will result in two cell that identical to the parent. Cell that undergoes mitosis division regularly called the labile cell. One of the labile cell is skin that will continuously divide to replace the dead skin cell. Therefore mitosis is used to replace old or damaged cell so the body can keep its function. 
Final answer:

Mitosis plays a crucial role in adult animals by assisting in growth, repair and maintenance. This process generates cells that are genetically identical for replacing dead or damaged cells. Some organisms also use mitotic cell division for asexual reproduction, while meiosis produces cells for sexual reproduction.

Explanation:

In an adult animal, mitosis plays a critical role in growth, repair and maintenance. This process leads to the production of cells that are genetically identical, allowing for growth or repair of tissues by replacing dead or damaged cells. Mitosis involves four separate stages: prophase, metaphase, anaphase, and telophase, followed by cytokinesis, which constitutes a division of the cytoplasm and generates two daughter cells. These daughter cells then serve different functions in different parts of the body.

The cells produced in mitosis become functional cells located in various parts of the body, contributing to the body’s overall growth or replacing dead or damaged cells. While meiosis is responsible for generating reproductive cells or gametes, mitosis concerns somatic cells, which make up the majority of the body’s tissue.

However, it’s interesting to note that some organisms use miotic cell division for asexual reproduction. Still, in a diploid-dominant organism, such as an animal, cells produced by meiosis will only participate in sexual reproduction.

Learn more about Mitosis in Adult Animals here:

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Reproductive isolation is not an accurate term to describe populations of a species that
A) reproduces asexually.
B) is photosynthetic.
C) is able to move about freely in its environment.
D) lives in the same region as other closely related species.

Answers

Your answer is D lives in the same region as others closely related species. Because it wouldn't be C cause that's not isolation it would be B cause there not plants and its not A because it is reproductive but its not isolation.

Final answer:

Reproductive isolation refers to the inability of different species to mate successfully, a concept relying on sexual reproduction. Thus, species that reproduce asexually are not accurately described by reproductive isolation terms since they do not engage in sexual reproduction.

Explanation:

The question asks which condition is not an accurate term to describe populations of a species that are reproductively isolated from other groups. The correct answer is A) reproduces asexually. Reproductive isolation involves the inability of members of a species to mate successfully with members outside their species, which is foundational to the biological species definition. This concept crucially relies on the exchange of genetic information through sexual reproduction. Therefore, species that reproduce asexually do not fit this definition of reproductive isolation since they do not engage in sexual reproduction to begin with. Conditions related to photosynthesis, mobility, or geographic proximity to related species do not directly impact the fundamental process of reproductive isolation.

If available the body will always digest which macromolecule for energy first?

Answers

Carbohydrates. If they can't be found, lipids are next.

Answer: Carbohydrates

Explanation:

If many sources of energy is present then the body will first utilize carbohydrates then once all the carbohydrates of the body is utilized then the body will move to another sources such as fats and proteins.

The reason being that the oxidation of carbohydrates requires less energy as compared to fat and proteins.

The primary source of energy inside the body is carbohydrates so this will be used by the body firstly.

Biomes dominated by grasses and other herbaceous plants are known as _________.

Answers

They are generally referred to as grasslands. Grasslands could be tropical grassland (savanna) or temperate grasslands

In systolic heart failure, what effect does the renin-angiotensin-aldosterone system (raas) have on stroke volume?

Answers

A systolic heart failure is the inability of the heart to generate adequate cardiac output to perfuse tissues. Activation of the renin-angiotensin-aldosterone system (RAAS) causes not only increases in preload and afterload but also direct toxicity to the myocardium.

A meteorologist predicts fog in the morning over lakes and river bottoms because of the atmospheric conditions and their interactions with the _____.

Answers

A meteorologist predicts fog in the morning over lakes and river bottoms because of the atmospheric conditions and their interactions with the hydrosphere.

Answer:

The given blank can be filled with hydrosphere.

Explanation:

A meteorologist determines fog in the morning over the lakes and bottoms of the river with the help of the atmospheric conditions and their associations with the hydrosphere. The region of the surface of the Earth where the entire water on the planet is found is considered as the hydrosphere. The hydrosphere can be in the form of vapor, liquid, or ice.

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