What is an allele in bio?

Answers

Answer 1
Answer: An allele is like a trait or a specific gene.
Answer 2
Answer: An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

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Roots have all of the following functions EXCEPT to ____.a. anchor the plant c. store food b. absorb water d. make food
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A white dwarf is _____. a small star before it enters the main sequence stage the stage after a red giant finishes nuclear fusion a star that is about to become a black hole a small black hole

Answers

The correct answer is the stage after a red giant finishes nuclear fusion

A white dwarf can be defined as a star that has completed its nuclear fusion. This is a type of star which is at the stage of completion of its nuclear burning , it expels its outer material which creates a planetary nebula. The core of star becomes hot and white in color. It takes millions of year for its cooling.




active transport performs which function in a cell, packages protein for export from the cell? Packages proteins for export from the cell, distributes enzymes throughout the cytoplasm, moves substances against a concentration gradient, equalizes the concentration of water inside and outside the cell

Answers

Well active transport absolutely moves substances against their concentration gradient (answer C), although I dislike how the other answers could probably be argued for. This seems to be a case of pick the "best" answer

Which is the largest gland in the body?

Answers

The largest gland in the body is the liver. The liver is a vital organ located in the upper right abdomen, beneath the diaphragm.

It performs numerous essential functions necessary for maintaining overall health. The liver plays a central role in metabolism, as it is involved in processing nutrients from the food we eat, regulating glucose levels, and storing vitamins and minerals.

Additionally, the liver is responsible for detoxifying harmful substances, producing bile, which aids in digestion, and synthesizing proteins crucial for blood clotting and other physiological processes. Its size can vary depending on factors such as age, body weight, and overall health. The liver's large size and its multifunctional significance make it a crucial organ for maintaining the body's proper functioning.

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Liver is the largest gland in the body

Altitude is greater what what point

Answers

altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.

This phylogenetic tree was constructed by comparing sequences for a homologous gene involved in development. Select the correct statement.a. Frog is the ancestor of both a mouse and a chicken. b. The common ancestor of a human and a frog and the common ancestor of a mouse and a chicken lived at the same time. c. The nucleotide sequence of this gene in a mouse is more similar to the sequence in a chicken, and both are less similar to the nucleotide sequence of this gene in a frog.

Answers

Answer:

c. The nucleotide sequence of this gene in a mouse is more similar to the sequence in a chicken, and both are less similar to the nucleotide sequence of this gene in a frog.

Answer:  c. The nucleotide sequence of this gene in a mouse is more similar to the sequence in a chicken, and both are less similar to the nucleotide sequence of this gene in a frog.

Explanation:

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Red-green color blindness is due to an X-linked recessive allele in humans. A widow�s peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele.Consider the following family history:
A man with a widow�s peak and normal color vision marries a color-blind woman with a straight hairline.
The man�s father had a straight hairline, as did both of the woman�s parents.
Use the family history to make predictions about the couple�s children.
Drag the correct label to the appropriate location in the table. Not all labels will be used.
What is the chance that any daughter the couple has will be color blind with a straight hairline?

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What is the chance that any son that the couple has will be color blind with a widow's peak?

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If the couple has a child, what is the chance that it will be a daughter with a widow's peak?

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Suppose the couple had a daughter with normal color vision and a widow's peak. What is the chance that she is homozygous for both genes?

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0

1/2

3/4

1

1/4

Answers

Based on the exercise data we know that the couple genotype for red-green color blindness is:

(XY     x     X'X')

     X'        X'

X    X'X      X'X

Y   X'Y      X'Y

And the genotypes for widow's peak are:

  (Aa   x  aa)

     a      a

A   Aa   Aa

a    aa    aa

1) What is the chance that any daughter the couple has will be color blind with a straight hairline?

Zero

2) What is the chance that any son that the couple has will be color blind with a widow's peak?

1/4

3) If the couple has a child, what is the chance that it will be a daughter with a widow's peak?

1/4

4) Suppose the couple had a daughter with normal color vision and a widow's peak. What is the chance that she is homozygous for both genes?

Zero