NEET 2007 Biology question

A common test to find the genotype of a hybrid is by:

(1)crossing of one F progeny with male parentCorrect
(2)crossing of one F progeny with male parent
(3)crossing of one F progeny with female parent
(4)studying the sexual behaviour of F progenies.

Answer: (1)

Solution

The genotype of a hybrid (F) individual showing the dominant phenotype is found by a test cross, in which the F is crossed with the homozygous recessive parent (the recessive parent of the original cross); the progeny ratio then reveals the F genotype (1:1 for a heterozygote; all

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Question ID VK-089814