31) Imagine that a newly discovered species of fish normally has three eyes ( E), but the rare mutation
(e) causes ?diopthalmic? fish with two eyes to be born. In addition, eye color in these fish is inherited similarly to humans, with black eyes (B) being dominant to blue (b). Assuming these two genes are carried on separate chromosomes, what must the genotypes of two black -eyed,
three-eyed parents be if they have a blue-eyed, diopthalmic son?
A) eeBB and EEbb
B) Both EeBb
C) Both eebb
D) EEBB and eebb

Question

31)	Imagine that a newly discovered species of fish normally has three eyes ( E), but the rare mutation
(e)	causes ?diopthalmic? fish with two eyes to be born. In addition, eye color in these fish is inherited similarly to humans, with black eyes (B) being dominant to blue (b). Assuming these two genes are carried on separate chromosomes, what must the genotypes of two black -eyed,
three-eyed parents be if they have a blue-eyed, diopthalmic son?
A) eeBB and EEbb
B) Both EeBb
C) Both eebb
D) EEBB and eebb

Quizplus · Accepted Answer

Given that the parents are both three-eyed and black-eyed, and they produce a blue-eyed, diopthalmic son, the parents must be heterozygous for both traits (EeBb). This allows for the combination of recessive alleles (eebb) in their son, resulting in two eyes and blue eye color.

31) Imagine That a Newly Discovered Species of Fish Normally Has