1
Question
Arrange
the following terms in the correct developmental sequence:
Pollen
grain, sporogenous tissue, microspore tetrad, pollen mother cell,
male gametes
Arrange the following terms in the correct developmental sequence:
Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes
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Solution
The correct development
sequence is as follows:
Sporogenous tissue –
pollen mother cell – microspore tetrad – Pollen grain –
male gamete
During the development
of microsporangium, each cell of the sporogenous tissue acts as a
pollen mother cell and gives rise to a microspore tetrad, containing
four haploid microspores by the process of meiosis
(microsporogenesis). As the anther matures, these microspores
dissociate and develop into pollen grains. The pollen grains mature
and give rise to male gametes.
The correct development sequence is as follows:
Sporogenous tissue – pollen mother cell – microspore tetrad – Pollen grain – male gamete
During the development of microsporangium, each cell of the sporogenous tissue acts as a pollen mother cell and gives rise to a microspore tetrad, containing four haploid microspores by the process of meiosis (microsporogenesis). As the anther matures, these microspores dissociate and develop into pollen grains. The pollen grains mature and give rise to male gametes.
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