13
Question
On germination each zygospore of Spirogyra gives rise to
On germination each zygospore of Spirogyra gives rise to
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Solution
The correct option is D One plant
Zygospore releases after disintegration of the filament and sink to the bottom of the waterbody. Zygospore is a triple layered with brownish-orange coloured outer layer. Zygospores in the bottom of pond rest till the return of favourable season. For germination, zygospore nucleus divides meiotically and out of four daughter nuclei formed, three disintegrate, leaving only one haploid nucleus. The two outer coasts bursts and the zygospore germinates and forms a new filament.
Zygospore releases after disintegration of the filament and sink to the bottom of the waterbody. Zygospore is a triple layered with brownish-orange coloured outer layer. Zygospores in the bottom of pond rest till the return of favourable season. For germination, zygospore nucleus divides meiotically and out of four daughter nuclei formed, three disintegrate, leaving only one haploid nucleus. The two outer coasts bursts and the zygospore germinates and forms a new filament.
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