a. Red green color blindness is a sex linked recessive trait. If a woman with normal...

a. Red green color blindness is a sex linked recessive trait. If a woman with normal vision whose father is colorblind marries a man with colorblindness. What would be the probability that they have a colorblind child?

b. Two parents have ABO blood group genotypes. Which of the following blood types could not belong to one of their children? AB, B, O, A.

c. A women who is a carrier for colorblindness marries a normal male. What is the probability that this couple will have a color blind child?

Please explain clearly!

Thank you!!

Expert Solution

gladiator answered 1 year ago

1)Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision...

1)Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents? A)XnXn and XnY B)XNXN and XNY C)XNXn and XNY D)XNXN and XnY 2)A poison interferes with the action of RNA polymerase II, but not RNA polymerase I or III. Which of the following is likely to be true of a cell exposed to the poison? A)production of tRNA would be stopped but not...

4. In humans, red-green color blindness is recessive to normal sight. The gene for this trait is...

4. In humans, red-green color blindness is recessive to normal sight. The gene for this trait is carried on the X chromosome. In each of the following, give the genotype and phenotype of all possible offspring and their expected ratios. Give the phenotypic ratios of males ♂ and females ♀ separately (ALWAYS FOR X-LINKAGE): (a) a color-blind man married to a normal- sighted woman whose father is color-blind; (b) a man with normal color vision married to a color-blind woman.

Red-green color blindness is due to an X-linked recessive allele in humans. A widow’s peak (a...

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...

A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A...

A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is red-green color blind marries a male with normal vision. Which of the following best predicts the phenotypes of their children? A. All of the children will have normal vision. B. All of the daughters will have normal vision, and half of the sons will be red-green color blind. C. All of the daughters will have normal vision,...

In human beings, the gene for red green colorblindness (r) is sex linked and recessive to...

In human beings, the gene for red green colorblindness (r) is sex linked and recessive to its allele for normal vision (R), while the gene for freckles (F) is autosomal and dominant over its allele for nonfreckled (f). A nonfreckled, normal visioned woman whose father was freckled and colorblind, marries a freckled, colorblind man whose mother was nonfreckled. a. What is the genotype of the woman's father? b. What is the probability that the couple's first child will be a...

Colorblindness is a sex linked trait in humans. Normal vision is a sex linked dominant trait....

Colorblindness is a sex linked trait in humans. Normal vision is a sex linked dominant trait. A man’s maternal grandmother had normal vision; his maternal grandfather was colorblind; his mother is colorblind; his father has normal vision. What are the genotypes of the two grandparents and parents mentioned? What type of vision does the man have himself? What type have his sisters? If he should marry a woman genotypically like one of his sisters (he is not marrying one of...

An X-linked recessive allele, r, produces red-green colorblindness in humans. A normal woman whose father was...

An X-linked recessive allele, r, produces red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man. a. What is the chance that the first child from this marriage will be a colorblind boy? b. What is the chance that the first child from this marriage will be a colorblind girl? c. If the couple have three children, what is the probability that two of them will be colorblind boys and one will be a normal...

a) Color blindness is an X-linked trait. A female who is color blind marries a male...

a) Color blindness is an X-linked trait. A female who is color blind marries a male with no history of the condition. Show the problem. Of their children, what proportion would be expected to be color blind? Are these sons or daughters or both? Are any children carriers (having the gene, but not expressing the condition)? Are these sons or daughters or both? b)In sea horses long tail is dominant to short, and thick scales is dominant to thin. Cross...

In Drosophila the recessive alleles for white eyes is X-linked (normal eye color is red) and...

In Drosophila the recessive alleles for white eyes is X-linked (normal eye color is red) and the recessive allele for vestigial wings is autosomal. A female heterozygous for both of these traits is crossed with a white-eyed vestigial male. What proportion of the FEMALE progeny will be white-eyed with vestigial wings.? (a) 100 % (b) 75 % (c) 50 % (d) 25 % (e) 0 %

Hemophilia is a sex-linked trait. A hemophilic man, whose father was normal, marries a woman whose...

Hemophilia is a sex-linked trait. A hemophilic man, whose father was normal, marries a woman whose father had hemophilia and whose mother was heterozygous for hemophilia. What are the chances that their son will have hemophilia? A daughter will have hemophilia? (Since there are two possibilities for the mother, you must use the data from two Punnett Squares to answer these questions.) Mr. X has been accused by Miss Z of fathering her child. The child's blood type is AB...

Question