Question

blue flowers and white flowered plant on crossing give blue and white flower in ratio 60 :40 if blue colour selfing what will be ratio of blue and white flowers rpmt

Answer 1

Test crosses are used to test an individual's genotype by crossing it with an individual of a known genotype. Individuals that show the recessive phenotype are known to have a homozygous recessive genotype. ... The purpose of a test cross is to determine if this individual is homozygous dominant or heterozygous.

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