Any individual which shows a recessive phenotype for a particular trait always carries homozygous recessive genotype, whereas individual showing dominant phenotype can carry homozygous genotype or heterozygous genotype. To determine the genotype of an organism with phenotypically dominant trait, a test cross is performed.

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Chapter 11, Problem 5MC

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Any individual which shows a recessive phenotype for a particular trait always carries homozygous recessive genotype, whereas individual showing dominant phenotype can carry homozygous genotype or heterozygous genotype. To determine the genotype of an organism with phenotypically dominant trait, a test cross is performed.

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