The phenotypic ratio for the F₁generation that results from a testcross between a homozygous recessive individual and a heterozygous individual is A)1:1 B)2:1 C)3:1 D)1:2:1

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In a testcross between a homozygous recessive individual and a heterozygous individual, the offspring will exhibit a 1:1 phenotypic ratio. This is because the homozygous recessive parent can only contribute recessive alleles, while the heterozygous parent can contribute either a dominant or a recessive allele, resulting in half of the offspring expressing the dominant phenotype and half expressing the recessive phenotype.

The Phenotypic Ratio for the F1 generation That Results from a Testcross

The Phenotypic Ratio for the F₁generation That Results from a Testcross