In a one-trait testcross, a homozygous dominant individual is crossed with a homozygous recessive individual. Which phenotype will be absent in the F ₁ generation? A) dominant trait. B) negative trait. C) recessive trait. D) heterozygote. E) homozygote.

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In a one-trait testcross involving a homozygous dominant individual crossed with a homozygous recessive individual, all offspring in the F1 generation will inherit one dominant allele and one recessive allele, displaying the dominant phenotype. Therefore, the recessive phenotype will be absent.

In a One-Trait Testcross, a Homozygous Dominant Individual Is Crossed