Question

A female black cat mated with an albino male and gave birth to 6 black kittens. When the albino male was mated with a different female black cat, 3 black cats and 2 albino cats were produced. How can you explain this genetic situation? Write genotypes for all three parental cats and offspring.

Answer 1

Depending on the scenario discussed in the question, we can analyze that albino is the recessive trait whereas the black colour is the dominant one. The female black cat which produced 6 black offsprings was homozygous for black colour. Whereas, the other black cat which produced 3 black cats and 2 albino cats was heterozygous for the black colour.

Genotype of the black cat who produced all clack offsprings will be BB.

Genotype of the black cat who produced 3 black cats and 2 albino cats will be Bb.

Genotype of the albino male cat will be bb.