Question

In: Biology

A colorblind man marries a woman of normal vision. They have sons and daughters, all with...

  1. A colorblind man marries a woman of normal vision. They have sons and daughters, all with normal vision and all of whom marry normal-visioned persons. Where among the grandchildren may colorblindness be expected to appear?


Solutions

Expert Solution


Related Solutions

If a colorblind man marries a normal vision woman and have color blind daughter. What is...
If a colorblind man marries a normal vision woman and have color blind daughter. What is the probability that their next child will be color blind? What is the probablity that their next child will have normal vision?
A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal...
A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their daughters might be expected to be color-blind and of normal height? Justify your answer.
A woman who is colorblind who also has a colorblind daughter is suing a normal vision...
A woman who is colorblind who also has a colorblind daughter is suing a normal vision man for paternity. You have been called into court as an expert in genetics to testify. What do you tell the jury? Fully explain your answer. Do not just say he is or isn’t the father.
If a phenotypically normal woman whose father suffered from hemophilia marries a normal man, what is...
If a phenotypically normal woman whose father suffered from hemophilia marries a normal man, what is the probability of hemophilia occurring in the children produced by this marriage? (Show the cross and give the genetic ratios by sex.) In the next case, assume that the same woman had a husband with a genotypically homozygous normal mother but whose father also had hemophilia. What will then be the chance of hemophilia in the children? Give genotypic and phenotypic ratios for the...
A color-blind man marries a homozygous normal woman, and after several years they have two children....
A color-blind man marries a homozygous normal woman, and after several years they have two children. Unfortunately, both children have Turner syndrome, although one has normal vision and one is color-blind. The type of color blindness involved is sex-linked recessive trait. a.) Write the genotype of a person with Turner’s syndrome? b.) For the color-blind child did nondisjunction occur in the mother or the father? Explain your answer. c.) For the child with normal vision in which parent did nondisjunction...
A normal man marries an affected woman with an X-linked recessive disease. The expected genotypes of...
A normal man marries an affected woman with an X-linked recessive disease. The expected genotypes of their offspring are_________.
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...
If another man who can roll his tongue marries a woman who cannot and they have...
If another man who can roll his tongue marries a woman who cannot and they have ten children all of whom can roll their tongues, what is his probable genotype? What is the genotype of the children? The phenotype? Can you be sure of the man's genotype--why or why not?
A woman who is a carrier for the cystic fibrosis (cf) allele marries a man who...
A woman who is a carrier for the cystic fibrosis (cf) allele marries a man who is also a carrier. What percentage of the woman’s eggs will carry the cf allele?____________ What percentage of the man’s sperm will carry the cf allele?____________ The probability that they will have a child who carries 2 copies of the cf allele is equal to the percentage of eggs that carry the allele times the percentage of sperm that carry the allele. What is...
1) A woman with blood type A marries a man with blood type B. Their three...
1) A woman with blood type A marries a man with blood type B. Their three children have blood types A, AB, and B. Which trait, if any, is dominant? Explain. What are the genotypes of the parents? What is the probability of these parents having a child with blood type O? Show your Punnett square.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT