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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
(a) Plan an experiment and prepare a flow chart of the steps that you would follow to ensure that the seeds are formed only from the desired sets of pollen grains. Name the type of experiment that you carried out.
(b) Write the importance of such experiments
A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, no return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it?
What type of cell division occurs during microsporogenesis and megasporogenesis events?
Anther is typically ______.
Exine of pollen grain is formed of ______.
Pollen grain is liberated at ______.
Pollen grains can be stored in liquid nitrogen at ______.
How many microspore mother cells are required to produce 1000 microspores/pollen grains?
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?
Callase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by ______.
Study of pollen grains is called ______.
One of the most resistant biological material present in the exine of pollen grain is ______.
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: ______
Male gametophyte with least number of cell is present in ______.
In some members of which of the following pairs of families, pollen grains retain their viability for months after release?
A male plant bearing red flowers was crossed with a female plant bearing yellow flowers. In the F1 generation, all the flowers were orange in colour.
Give a reason to explain the change of colours in F1 generation.
