For guinea pigs, the allele for black fur is dominant, whereas the allele for white fur is recessive. A test cross may be used to work out the genotype of a guinea pig with black fur. What result would be expected from the test cross if the guinea pig with black fur were homozygous?
- A50% black, 50% white
- B25% black, 75% white
- C100% black
- D100% white