In humans, pointed eyebrows (B) is a dominant trait over smooth eyebrows (b). A student and the mother have smooth eyebrows while the father has pointed eyebrows. What is the genotype of the father?

Medic_Triton

4 years ago

The answer should be B

Since pointed eyebrow (B) is dominant over smooth eyebrows (b). So, She can have smooth eyebrows only if her father is heterozygous for the dominant character. If her father has the genotype Bb and her mother is bb (smooth eyebrows) then her genotype will be either Bb (pointed) or bb(smooth eyebrows).

Ben_emy

4 years ago

The student has smooth eyebrows bb
The mother have smooth eyebrows bb
So for the student to have the smooth eyebrows, this means that the father is heterogeneous pointed eyebrows Bb
The answer is B not A