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Question
The female gametophytes are retained on the parent sporophyte in
The female gametophytes are retained on the parent sporophyte in
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Solution
The correct option is A Heterosporous species of pteridophytes
Most of the pteridophytes produce similar kinds of spores hence called homosporous.
Genera like Selaginella and Salvinia which produce two kind of spores, macro (large) and small (micro) spores are known as heterosporous. Microspore and macrospore germinate and gives rise to male and female gametophyte respectively.
The female gametophytes in these plants are retained on the parent sporophyte for variable period. The development of zygote into young embryo takes place within the female gametophytes.
So, the correct answer is ‘heterosporous species of pteridophytes’.
Most of the pteridophytes produce similar kinds of spores hence called homosporous.
Genera like Selaginella and Salvinia which produce two kind of spores, macro (large) and small (micro) spores are known as heterosporous. Microspore and macrospore germinate and gives rise to male and female gametophyte respectively.
The female gametophytes in these plants are retained on the parent sporophyte for variable period. The development of zygote into young embryo takes place within the female gametophytes.
So, the correct answer is ‘heterosporous species of pteridophytes’.
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