Question

3. In guinea pigs, black coat (B) is dominant over albino (b). What are the genotypic and phenotypic ratios of a cross between a heterozygous black coated pig and an albino one?

Answer 1

If we cross a heterozygous black-coated guinea pig (Bb) with an albino guinea pig (bb), let's determine the genotypic and phenotypic ratios.

The possible genotypes of the offspring are: BB, Bb, and bb.

The genotypic ratio would be:
1 BB : 2 Bb : 1 bb

The possible phenotypes of the offspring are: black coat and albino coat.

The phenotypic ratio would be:
3 black coat : 1 albino coat

So, the genotypic ratio is 1 BB : 2 Bb : 1 bb, and the phenotypic ratio is 3 black coat : 1 albino coat.

Answer 2

Answer:

The genotypic ratio is 1 BB : 2 Bb : 1 bb, and the phenotypic ratio is 3 black coat : 1 albino coat.

Explanation:

I did the test

Hope this helps :)