Hairlessness in Dogs Is Inherited from a Single Dominant Allele

question 14

Multiple Choice

Hairlessness in dogs is inherited from a single dominant allele.Inheriting two dominant alleles is lethal for an embryo.Penelope,a hairless dog mates with Arnold,a dog with hair.The probability Penelope will have hairless puppies is

• A)3/4.
• B)2/3.
• C)1/4.
• D)1/2.