Question

In rabbits, grey fur is dominant to white fur and black eyes are dominant to red eyes. Cross a heterozygous grey and homozygous black eye rabbit crossed with a white fur and red-eyed rabbit. Show your work including genotype and phenotype.

Answer 1

The genotype of the offspring from the given cross would be GgBb, Ggbb, ggBb, and ggbb. The corresponding phenotypes would be grey fur with black eyes, white fur with black eyes, grey fur with red eyes, and white fur with red eyes.

Step-by-step explanation:

To determine the genotype and phenotype of the offspring from the given cross, we need to understand the inheritance patterns of fur color and eye color in rabbits.

In rabbits, grey fur is dominant to white fur and black eyes are dominant to red eyes. Therefore, the heterozygous grey and homozygous black-eye rabbit would have the genotype Gg and Bb, respectively. The white fur and red-eyed rabbit would have the genotype gg and bb, respectively.

When these rabbits are crossed, the possible genotypes and phenotypes of the offspring can be determined using a Punnett square:

Gg gg Bb Grey fur, black eyes White fur, black eyes bb Grey fur, red eyes White fur, red eyes

From the Punnett square, we can see that 50% of the offspring will have grey fur and red eyes, 25% will have white fur and black eyes, and 25% will have white fur and red eyes.