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प्रश्न
In the T.S. of a mature anther given below, identify "a" and "b" and mention their functions.
उत्तर
"a" - Sporogenous tissue - During the development of the anther, the cells of the sporogenous tissue undergo meiotic divisions to form microspore tetrads.
"b" - Tapetum - It is the innermost layer surrounding the microsporangium. It plays an important role in providing nourishment to the developing pollen grains.
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संबंधित प्रश्न
Egg apparatus consists of ______.
The point at which funiculus touches the ovule is ______.
Egg apparatus consists of ______.
The most common type of ovule is ______.
Polygonum type of embryo sac/typical female gametophyte of angiosperms is ______.
Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
Polygonum type of embryo sac is ______.
Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to the funiculus the ovule is termed as ______.
During the process of fertilisation the pollen tube of the pollen grain usually enters the embryo sac through ______.
Embryo sac → Nucellus → Integuments, is the correct sequence of parts in the ovule of an angiosperms.
