Assertion :In Spirogyra, some cells in one of the two filaments become empty after conjugation. Reason: Aplanogametes from these cells pass through conjugation tube into cells of the other filament.

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
Sexual reproduction is Spirogyra is known as conjugation. The cell gametangium functions as a female and receives the male gametes from the adjacent cell called the aplanogamete. This transfer leaves an empty cell behind.
SO the correct option is A.

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