In rabbits, the homozygous genotype LCLC has normal legs, LCLc results in deformed legs, and LcLc results in very short legs. The genotype FBFB produces black fur, FBFb brown fur, and FbFb white fur. If a cross is made between brown rabbits with deformed legs and white rabbits with deformed legs, what percentage of the offspring would be expected to have deformed legs and white fur?

Question

Quizplus · Accepted Answer

The genotype of the brown rabbit with deformed legs is LCLc FBFb, while the white rabbit with deformed legs is LcLc FbFb. 
The Punnett Square for this cross would be:

|   | LC c | LC c |
| - | -   | -   |
| F B | LCLC FBFb | LCLc FBFb |
| F b | LCLC FbFb | LCLc FbFb |

From the Punnett Square, we can see that 25% of the offspring would have the genotype LcLc FbFb, which corresponds to having both deformed legs and white fur.

In Rabbits, the Homozygous Genotype LCLC Has Normal Legs, LCLc