Question

In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails?(1 point)
Responses

100%
100%

50%
50%

75%
75%

25%

Answer 1

50%.

Cross: Ll (long, heterozygous) × ll (short, homozygous recessive).
Punnett square gives 50% Ll (long) and 50% ll (short).