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Question 2 (11.111111111 points)

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The cattle breeding program notices that heterozygous animals (Bb) for certain traits often have advantages over homozygous animals. This relates to Mendel's observations about hybrid vigor. What does this suggest about genetic diversity in breeding programs?
Question 2 options:

Homozygous animals are always superior because they show consistent traits

Genetic diversity has no impact on animal health or breeding success

Heterozygous animals often combine advantages from both alleles they carry

Only purebred animals should be used in breeding programs

Answer 1

Heterozygous animals often combine advantages from both alleles they carry

Explanation: This is an example of heterosis (hybrid vigor) — increased fitness or performance from genetic diversity and heterozygosity, so maintaining diversity helps health and breeding success.