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Question
Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration, is called as
Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration, is called as
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Solution
The correct option is B Test cross
Two crosses between the same pair of genotypes/phenotypes in which the sources of gametes are reversed in one cross are called a reciprocal cross. It is performed to confirm if the results of the cross are affected by the sex of parents and does not necessarily involve one double recessive parent. A test cross is performed to determine the genotype of a dominant parent if it is a heterozygous- or homozygous-dominant. For the purpose, a dominant parent is crossed with the homozygous recessive parent. Thus, the correct answer is option B.
Two crosses between the same pair of genotypes/phenotypes in which the sources of gametes are reversed in one cross are called a reciprocal cross. It is performed to confirm if the results of the cross are affected by the sex of parents and does not necessarily involve one double recessive parent.
A test cross is performed to determine the genotype of a dominant parent if it is a heterozygous- or homozygous-dominant. For the purpose, a dominant parent is crossed with the homozygous recessive parent. Thus, the correct answer is option B.
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