Which is characteristic feature of gymnosperms?

Gymnosperms are homosporous

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The female and male gametophytes do not have independent free living existence

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Sporophyte is dependent on gametophyte

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The ovules are enclosed by ovary

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Pollen grains are released by megasporangium

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Solution

The correct option is B The female and male gametophytes do not have independent free living existence
In Gymnosperms, the gametophytes do not have an independent free living existence.
They are heterosporous.
The sporophyte is the independent dominant stage.
The ovules are not enclosed by the ovary and seeds are naked.
Pollens are released by the microsporangia.
Hence the correct option is B.

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