NEET Biology question

Assertion: A geneticist crossed two plants and got 50% tall and 50% dwarf progeny. Reason: This cross follows Mendelian law, as one of the parent plants might be heterozygous.

(A)Both assertion and reason are true and reason is the correct explanation of assertionCorrect
(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)Both assertion and reason are false

Answer: (A)

Solution

A 1:1 (50:50) ratio of tall to dwarf progeny is the characteristic result of a test cross — crossing a heterozygous () individual with a homozygous recessive () individual. The assertion (the observed 50:50 result) is therefore true, and

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Question ID VK-120414