NEET Biology question

A test cross is carried out to

(A)Determine the genotype of a plant showing the dominant phenotypeCorrect
(B)Predict whether two traits are linked
(C)Assess the number of alleles of a gene
(D)Determine whether two species or varieties will breed successfully

Answer: (A)

Solution

A test cross is performed specifically to determine whether an individual displaying a dominant phenotype is homozygous or heterozygous, by crossing it with a homozygous recessive individual and examining the ratio of dominant to recessive offspring (1:1 indicates heterozygosity; all dominant indicates

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Question ID VK-120220