Advertisements
Advertisements
Question
An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give any one reason.
Solution
The tapetum is the innermost layer of a microsporangium, which is found in a cluster of two in each lobe of an anther. The tapetum is responsible for nourishing the pollen grains. Hence, if it malfunctions then the pollen grains will not be provided with sufficient nutrition and will not be able to mature into viable male gametes.
APPEARS IN
RELATED QUESTIONS
A moss plant is unable to complete its life cycle in a dry environment. State two reasons.
Name the structures formed at the end of microsporogenesis and megasporogenesis events.
Anther is typically ______.
Haploid plant cultures are got from ______.
Fertilization involving carrying of male gametes by pollen tube is ______.
In angiosperms various stages of reductional division can best be studied in ______.
Pollen grain is a ______.
How many pollen mother cells should undergo meiotic division to produce 64 pollen grains?
______ of the pollen grain divides to form two male gametes.
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.
