Assertion :Red algae are most advanced. Reason: They have diplobiontic life cycle.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Diplobiontic is the most advanced and complex life cycle in red algae. It is found in all red algae except Nemalionales. Life cycle includes one haploid phase and two diploid phases. There are three phases of the life cycle:
1. Carposporophyte (Diploid)
2. Gametophyte (Haploid)
3. Tetrasporophyte (Diploid)
The two diploid phases alternate with haploid gametophytic phase.
Thus, the correct answer is option A.

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