Assertion :A genetist crossed two plants. He got $50$ tall and $50$ dwarf plants in the progeny. Reason: One parent was heterozygous tall while the other was dwarf.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In a test cross a hybrid (heterozygous tall- Tt) is crossed with a homozygous recessive plant (tt). Such a cross will result in 50% of the progeny being tall (with genotype Tt) and 50% dwarf (with genotype tt). So, the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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Choose the correct option.

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