Please HELP :((
In Rabbits, black fur (B) is dominant to white (b), and long ears (E) are dominant to short ears (e). What is the expected phenotypic ratio of the offspring of a BBee x bbEE cross if these alleles sort independently?

Answer:

A. 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears

Explanation:

This question is a typical dihybrid cross i.e. involving two genes in rabbits. One coding for fur color and the other for ear length. The allele for black fur (B) is dominant to allele for white fur (b) and allele for long ear (E) is dominant to alelle for short ear (e).

In this question, a cross between two rabbits with genotypes: BBee x bbEE is performed. The following combination of gametes will be produced by each rabbit:

BBee - Be, Be, Be, and Be

bbEE - bE, bE, bE, and bE

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

All BbEe offsprings, which have a black fur and long ear phenotype.

Hence, the phenotypic ratio is 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears

In the Picture above.

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