Pedigrees

If individuals I-1 and I-2 had another son, what is the chance that he would have DMD?

100%

If individual II-3 has a child with a carrier woman, what is the percent chance that the child will be a daughter with DMD?

25%

If individuals I-1 and I-2 had a fourth child, what is the chance that the child would have attached earlobes?

50%

If individuals II-1 and II-2 have a fourth child, what is the probability that the child will have dimples?

50%

If individual III-3 married a woman who was heterozygous for dimples, what is the percent chance their children will have dimples?

75%

If individual III-6 married a man who was homozygous for unattached earlobes, what is most likely to be true regarding their children?

All of their children would have unattached earlobes.

What is the phenotype of individual III-4?

Dimples

What is the genotype of individual I-1?

Ee

What is the genotype of individual II-3?

Ee

Which of the following individuals is correctly matched with its genotype?

III-2 ->Dd

Based on the pedigree, which of the following is true?

If individual III-1 marries an unaffected, non-carrier female, none of their offspring will have DMD.

What is the genotype of individual II-2?

X D X d