Question

Crooked little fingers (streptonicrodactyly) is inherited as a dominant trait in humans. If a man with both genes dominant from crooked little fingers marries a woman with normal little fingers, what percent of their children will have crooked little fingers?

Answer 1

100 percent, heterozygous dominant

Step-by-step explanation:

AS we will analyze the percentage by cross between Father and mother alleles

as crooked little finger is a dominant trait

father is dominant for both alleles = CC

Mother is normal (so both alleles should be recessive because of dominance of crooked little finger alleles

so for mother = cc (alleles)

So cross between father an mother

Mother

Father c c

C Cc Cc

C Cc Cc

So All children will have heterozygous dominant for crooked little fingers which is 100 percent,