BIOLOGY HIGH SCHOOL

In humans tongue rolling is dominant to the inability to tongue roll. If a heterozygous tongue roller and a non-tongue roller have a child, what are the chances the child will be a non-tongue roller? A. 0 B. 0.25 C. 0.5 D. 0.75

Answers

Answer 1

Answer:

Answer:

The chances of a child being non - tongue roller is $0.5\n$

Explanation:

Let the allele for dominant "tongue rolling trait" be represented by "T"

The allele for recessive "non-tongue rolling trait" be represented by "t"

The genotype of a heterozygous tongue rolling parent will be "Tt"

The genotype of a homozygous non- tongue rolling parent will be "tt"

If a cross is carried out between these two individuals , the offspring produced are as shown in the punnet square below-

T t

t Tt tt

So the number of offsrpings which are non- tongue roller are two in numbers represented by "tt"

So the chances that a child will be a non-tongue roller are

$(2)/(4) \n= 0.5\n$

Where , "4" represents the total number of offsprings produced

Answer 2

Answer: In humans, tongue rolling is dominant to the inability to tongue roll. The chances a child will be a non-tongue roller is C. 0.5.

Related Questions

A critical feature of the plasma membrane is that it is selectively permeable. this allows the plasma membrane to regulate transport across cellular boundaries--a function essential to any cell's existence. how does phospholipid structure prevent certain molecules from crossing the plasma membrane freely?
A Bromeliad is a plant that provides water and shelter to frogs. The Bromeliad does not gain or lose anything in the relationship. This is an example ofparasitism mutualism commensalism competition
Which statement describes gravity
Can cells survive without support of other cells?
Which statement describes what occurs in both animal and plant cells? A) Nitrogen is used for respiration and oxygen is a waste product. B) Oxygen is used for respiration and carbon dioxide is a waste product. C) Nitrogen is used for respiration and carbon dioxide is a waste product. Eliminate D) Carbon dioxide is needed for respiration and oxygen is a waste product.

the solution inside a plant cell is approximately a 1% saline solution. in a 25% nacl solution the cytoplasm of a plant cell will

Answers

The cell has 1% concentration of the salt. The external environment is highly concentrated with 25% saline solution. This will lead to release of water outside the cell, by passive diffusion from a region of high conentration of solvent to lower concentration. Thus, the cell will shrink.

The cell will shrink and draw away from the cell wall.

Which characteristic best distinguishes glycolysis and the Krebs cycle from the electron transport chain? the amount of ATP produced the location in which they occur whether glucose is broken down whether they occur in plants or animals

Answers

It would be "the amount of ATP produced" that best distinguishes glycolysis and the Krebs cycle from the electron transport chain since this is the basis of energy creation.

A. The mount of ATP produced

Whats are the pros and cons of a endoskeleton?

Answers

Pros:
It protects the bug's insides.
It's like armor in a way.
Endoskeletons can provide many pretty colors...

Cons:
It's like a shell so when it breaks you're exposed to the many harmful things.
Hope that helps!

Why is it important to repeat an experiment several times, whenever possible?

Answers

It is important to do so to ensure that your results are both accurate and consistant.
Hope this helps.

To make sure the results that you have are accurate and through out the experiment.. changes may occur and you would want to record those changes

All of the following are used to classify stars exceptsize
brightness
temperature
shape

Answers

This correct answer is Shape :)

Which of the following statements violates the cell theory?1) Mitosis produces new cells identical to the parent cell that divided to make them.
2) Viruses are not considered to be living organisms, because they are smaller than a cell.
Eliminate
3) Though humans are one organism, they are composed of about 100 trillion individual cells.
4) Some scientists believe that prions, tiny proteins muc

Answers

Statement 2. Viruses are not considered to be living organisms, because they are smaller than a cell.

Answer: Some scientists believe that prions, tiny proteins much smaller than a cell, that can replicate themselves, may be living organisms.

Explanation:

Other Questions

What is combustion and how does it affect the carbon cycle

What two ways helpful bacteria work to keep you healthy

Humans, dimples are a dominant trait. Predict the percentage of children that will have dimples if one parent is heterozygous for dimples and the other parent does not have dimples.(1 point)0 percent100 percent50 percent25 percentIf a white horse and a black horse are bred together, what percentage of the offspring will be roan and express both colors in their hair?1 point)100 percent0 percent25 percent50 percent

When we begin to get dehydrated, we usually get thirsty, which causes us to drink fluids. Is thirst part of a negative or a positive feedback system