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प्रश्न
Arrange the following terms in the correct developmental sequence:
Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes.
उत्तर
The correct development sequence is as follows:
Sporogenous tissue → pollen mother cell → microspore tetrad → Pollen grain → male gamete.
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संबंधित प्रश्न
An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give any one reason.
Still it is observed that it does not form a continuous layer around the pollen grain. Give reason.
Draw a T.S. of a young anther of an angiosperm. Label the different layers of the wall and write their functions.
Give four anatomical differences between a dicot leaf and monocot leaf.
Exine of pollen grain is formed of ______.
Pollen grains can be stored in liquid nitrogen at ______.
How many microspore mother cells are required to produce 1000 microspores/pollen grains?
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called ______.
Proximal end of the filament of stamen is attached to the ______.
In an angiosperm, how many microspore mother cells are required to produce 100 pollen grains?
In angiosperms, all the four microspores of tetrad are covered by a layer which is formed by ______.
In angiosperms various stages of reductional division can best be studied in ______.
Sepals and petals or perianth are inconspicuous in entomophilous flowers.
Mark the odd one.
On observing the pollen grain under the microscope, it was found to belong and ribbon shaped. The flower-bearing these pollen grains will be pollinated by: ______
Lateral conjugation in Spirogyra takes place in the cells of ______.
An organic substance that can with stand environmental extremes and cannot be degraded by any enzyme is ______.
What is the function of germ pores?
Draw a neat and well labelled diagram of T.S. of anther.
