Advertisements
Advertisements
प्रश्न
Complete the following flow chart
Advertisements
उत्तर
Generative cell
APPEARS IN
संबंधित प्रश्न
In most angiosperms, the 3-celled stage of the mature male gametophyte is reached ______
The mature male gametophyte in angiosperm is represented by ______.
Identify the correct ratio of male gametes, vegetative cells, generative cells and microspore mother cells produced in a microsporangium if 80 pollen grains are released from it.
Assertion (A): Both wind and water pollinated flowers are not very colourful and do not produce nectar.
Reason (R): The flowers produce enormous amount of pollen grains in wind and water pollinated flowers.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.
Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.
In the light of the above statements, choose the most appropriate answer from the options given below:
In a male gametophyte, ploidy of tube cell and a male gamete is ______.
What is the function of tassels in the corn cob?
What is the scientific term for the study of the external morphology of mature pollen grains?
The protective double-layered wall or covering of a pollen grain is collectively known as the ___________.
What is the name of the thin, circular region where the exine is absent and the pollen tube eventually emerges during germination?
Which part of the pollen grain wall protrudes through the germ pore to form the pollen tube during germination?
After being released from the anther, the pollen grain divides into two unequal cells. These cells are named ____________.
Which cell within the developing male gametophyte is responsible for eventually forming the two male gametes?
At what temperature can pollen grains be preserved in "pollen banks" for long-term storage?
