Question: From NCERT | NEET || [Difficult level:Easy] ||
Statement A - In seed plants, both male and female
gametes are non-motile.
Statement B - In spermatophytes, pollen grains are
the carrier of male gametes.
1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements A and B are incorrect.
4. Both statements A and B are correct_
:4. Both statements A and B are correct ...
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NCERT REFERENCE
__Statement A: The male and female gametes in flowering plants are produced in the pollen grain and embryo sac, respectively. As both types of gametes are non-motile___
Statement B : __When the pollen grain is mature it contains two cells, the vegetative cell and generative cell (Figure 2.5b). The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in the cytoplasm of the vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 per cent of angiosperms, pollen grains are shed at this 2-celled stage. In the remaining species, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed_____________
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