In domestic cats, black fur color and short fur length are dominant traits. a male cat with black, long fur (bbss) and a female cat with brown, short fur (bbss) have kittens. what are the expected phenotypes of the kittens?

The correct answer is -

The expected phenotypes of the kittens will be- 50% Black fur color with short length (BbSs) and 50% brown fur color with short length (bbSs).

Explanation:

As per the given information in the question, black fur color and short fur length are dominant traits over brown fur and long length in domestic cats.

A dominant trait (expressed by capital letter allele such as B for black fur) always masks the expression of recessice trait (expressed by small letter allele such as b for brown fur).

The gametes produced by parents are-

Parent Bbss will produce- Bs, bs

Parent bbSS will produce- bS

When these parents are crossed, they will produce the following kittens-

Bbss×bbSS

= BbSs, bbSs

This means that 50% kittens of Black fur color with short length (BbSs) and 50% kittens of brown fur color with short length (bbSs) are produced.