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Questions
Define the following:
Test cross
Define a test-cross.
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Solution 1
Test cross is a cross between an organism with an unknown genotype and a recessive parent. It is used to determine whether the individual is homozygous or heterozygous for a trait.
Solution 2
Crossing of an F1 individual having a dominant phenotype with its homozygous recessive parent is called a test cross. A test cross is performed to determine the genotype of the F2 plant. In a typical test, a cross, an organism showing a dominant phenotype and whose genotype is to be determined is crossed with one that is homozygous recessive for the allele being investigated, instead of self-crossing.
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