Question

In mice, albinism (b) is recessive to normal brown coloration (B). When an albino female was crossed with a brown male, they produced 2 brown offspring and 2 albino offspring. What is the genotype of the brown male parent?

Answer 1

Answer:

Bb is his genotype. He passed his dominant allele 50% of the time and his resessive allele 50% of the time.