NEET Biology question

Statement 1 (Assertion): A test cross is the cross between the F1 progeny and either of the parent types. Statement 2 (Reason): A back cross is the cross between F1 progeny and the double recessive genotype.

(A)Both assertion and reason are true and reason is the correct explanation of assertion
(B)Both assertion and reason are true but reason is not the correct explanation of assertion
(C)Assertion is true but reason is false
(D)Assertion is false, reason is trueCorrect

Answer: (D)

Solution

A test cross is specifically and only a cross with the homozygous recessive parent (to determine an unknown's zygosity), not "either" parent type in general — Statement 1 incorrectly describes the broader concept of a back cross instead, making it false. A back cross is indeed any cross of the F1 with one of its

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Question ID VK-120431