Asked by Lily
7. Hemophilia is a sex-linked recessive trait defined by the absence of a protein that promotes blood clotting. Hemophiliacs bleed excessively
when injured; in some cases, death results. Generally, the letters H and h represent the dominant and recessive alleles for hemophilia.
Since the trait is sex-linked, the genotype is always associated with the X and Y chromosomes. Therefore, for example, a normal female is XHXH or XHXh. Use the family tree/pedigree chart provided to answer the questions that follow:
a. What are the phenotypes of the P1 generation?
b. If parents 1 and 2 were to have another child, what is the probability of that child being hemophilic?
c. If parents 1 and 2 were to have a 2nd male child, what are its chances of being hemophilic?
d. What are the genotypes of 4 and 5?
e. Can any female offspring of normal parents develop hemophilia?
when injured; in some cases, death results. Generally, the letters H and h represent the dominant and recessive alleles for hemophilia.
Since the trait is sex-linked, the genotype is always associated with the X and Y chromosomes. Therefore, for example, a normal female is XHXH or XHXh. Use the family tree/pedigree chart provided to answer the questions that follow:
a. What are the phenotypes of the P1 generation?
b. If parents 1 and 2 were to have another child, what is the probability of that child being hemophilic?
c. If parents 1 and 2 were to have a 2nd male child, what are its chances of being hemophilic?
d. What are the genotypes of 4 and 5?
e. Can any female offspring of normal parents develop hemophilia?
Answers
Answered by
ZOMBIE ZED
yes I think so?
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