Question

8. In seals, the allele for long whiskers is dominant over the allele for short whiskers. What percentage of the offspring would be heterozygous for long whiskers if both parents are heterozygous?
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0/4
25%
50%
75%
100%

Answer 1

50%

Crossing two heterozygotes (Ll × Ll) gives genotypes: 25% LL, 50% Ll, 25% ll — so 50% of offspring are heterozygous.