Related Questions
Maturation of gynoecium before anthers of the same flower is?
Protogyny
protandry
heterogamy
autogamy
Megaspore mother cell is found near the region of
Micropyle
Chalaza
Nucellus
Integuments
In wind pollination the pollens are feathery, whether it is
TRUE
FALSE
Sometimes (a) and sometimes (b)
Neither (a) nor (b)
Assertion: Dioecious plants cannot undergo autogamy.
Reason: Dioecious plants have separate male and female individuals.
Choose the correct option:
Both assertion and reason are true, and the reason is the correct explanation for the assertion.
Both assertion and reason are true, but the reason is not the correct explanation for the assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true.
Which type of pollen grains are found in insect pollinated flowers?
Hygroscopic
Light and sticky
Light and rough
Heavy and coloured
Micropyle is useful for the entry of
Pollen grain
Pollen tube
Water
Male gamete
The colorful and fragrant flowers of water hyacinth and water lily are adaptations to attract which type of pollinator?
Birds
Bats
Insects
Wind
For the formation of tetrasporic embryo sac, how many megaspore mother cells are required?
1
2
3
4
A flower exhibiting cleistogamy, but with viable pollen grains, fails to produce seeds. Which of the following is the LEAST likely explanation for this observation?
Lack of pollinating agents
Failure of pollen tube growth
Non-functional stigma
Problems with fertilization
