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NEET 2023, Biology Q25: Pteridophytes

NEET2023Biology
Q.

Identify the pair of heterosporous pteridophytes among the following:

  1. A

    Lycopodium and Selaginella

  2. B

    Selaginella and Salvinia

  3. C

    Psilotum and Salvinia

  4. D

    Equisetum and Salvinia

Solution

Heterosporous pteridophytes produce two kinds of spores — microspores and megaspores — that give rise to separate male and female gametophytes. Both Selaginella and Salvinia are heterosporous; Lycopodium, Psilotum and Equisetum are homosporous.

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