Class 11 · Biological Classification

Alternation of Generations in Plants — NEET Biology

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Life cycle of plants has two distinct phases – the diploid sporophytic and the haploid gametophytic – that alternate with each other. The lengths of the haploid and diploid phases, and whether these phases are free–living or dependent on others, vary among different groups in plants. This phenomenon is called alternation of generations. You will study further details of this kingdom in Chapter 3.

NCERT Biology · Class 11 · Chapter 2 · Paragraph 44
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Assertion (A): Plant life cycles involve alternation between two distinct phases. Reason (R): The sporophytic phase is haploid while the gametophytic phase is diploid.

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