A black mouse mates with a brown mouse, and all the offspring are black. (a) Why are no brown off springs produced? (b) If two of the black offspring mate with each other what kind of offspring would you expect and in what proportions? Give reason for your answer.

Question

Philoid · Accepted Answer

(a) No brown offspring are produced because brown color is recessive here and black being dominant rules.

(b)Three black mice and one brown mouse will be obtained in F₂ generation; It is a monohybrid cross(Punett Square)

A black mouse mates with a brown mouse, and all the offspring are black.(a) Why are no brown off springs produced?(b) If two of the black offspring mate with each other what kind of offspring would you expect and in what proportions? Give reason for your answer.

A black mouse mates with a brown mouse, and all the offspring are black.
(a) Why are no brown off springs produced?

(b) If two of the black offspring mate with each other what kind of offspring would you expect and in what proportions? Give reason for your answer.