Recall that pigmented eyes (P) are dominant to nonpigmented (p), and dimpled chins (D) are dominant to nondimpled chins (d)
A pigment-eyed, dimple chinned man marries a blue-eyed woman without a dimpled chin. Their first born child is blue-eyed and has a dimpled chin.
a) What are the possible genotypes of the father?
b) What genotype is the mother?
c) What alleles may have been carried by the father’s sperm?
Suppose a dimple-chinned, blue-eyed man whose father lacked a dimple marries a woman who is homozygous recessive for both traits.
a) What is the expected genotypic ratio of children produced in this marriage?
b) What is the expected phenotypic ratio?



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