In rabbits, black fur is dominant to white fur. As a rabbit breeder, you crossed a BB male with a Bb female, please complete the Punnett square for the possible genotypes of the offspring. Then complete, the percent chance for the phenotypes of the offspring.
To complete the Punnett square, we need to first determine the possible genotypes that can result from crossing a BB male with a Bb female.
The genotype of the BB male:
BB
The genotype of the Bb female:
Bb
Using the Punnett square, we can display the possible genotypes of the offspring:
| B | B |
___________|_____|_____|
B | BB | BB |
___________|_____|_____|
b | Bb | Bb |
___________|_____|_____|
For the phenotypes, black (B) is dominant to white (b). Therefore, if an individual has at least one black allele (B), their fur color will be black.
Percent chance for phenotypes:
- 75% chance of black fur (BB and Bb genotypes both result in black fur)
- 25% chance of white fur (bb genotype results in white fur)