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  • Identify the pair of heterosporous pteridophytes among the following :Option: 1 Lycopodium and Selaginella<stro

Identify the pair of heterosporous pteridophytes among the following :

Option: 1

Lycopodium and Selaginella


Option: 2

Selaginella and Salvinia


Option: 3

Psilotum and Salvinia


Option: 4

Equisetum and Salvinia


Answers (1)

best_answer

The correct option is Option 2) Selaginella and Salvinia.

Heterospory refers to the condition in which a plant produces two different types of spores: microspores and megaspores. These spores give rise to distinct male and female gametophytes.

Among the given options, Selaginella and Salvinia are both heterosporous pteridophytes.

Selaginella is a genus of clubmosses that exhibits heterospory. It produces two types of spores: microspores, which develop into male gametophytes, and megaspores, which develop into female gametophytes. The male gametophytes produce sperm, while the female gametophytes produce eggs.

Salvinia is a genus of aquatic ferns that is also heterosporous. It produces microspores and megaspores, which give rise to male and female gametophytes, respectively.

Therefore, Option 2) Selaginella and Salvinia is the correct pair of heterosporous pteridophytes among the given options.

Posted by

Ritika Kankaria

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