Which of the following is a post fertilisation events in flowering plants?
a) Transfer of pollen grains.
b) Embryo development.
c) Fruit development.
d) Formation of pollen grains.
e) Formation of seeds
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) -b,c, e.
Events in sexual reproduction after the formation of zygote are called post-fertilisation events .
Post-fertilization events in flowering plants are processes that occur after the fusion of the sperm and egg cells (fertilization) has taken place. These events include:
- Embryo development (b): After fertilization, the zygote formed begins to divide and develop into an embryo.
- Formation of seeds (c) : Ovules develop into seeds after fertilization. Each ovule contains an egg cell which, when fertilized by a sperm cell, forms a seed.
- Fruit development (e): The ovary of the flower develops into a fruit that contains the seeds.
The other options listed are pre-fertilization or unrelated to fertilization:
Pre-fertilisation Events :These include all the events of sexual reproduction prior to the fusion of gametes. The two main pre-fertilisation events are gametogenesis and gamete transfer.
- Transfer of pollen grains (a): This is a pre-fertilization event, where pollen is transferred from the anther to the stigma.
- Formation of pollen grains (d): This is another pre-fertilization event involving the production of male gametophytes.
Thus, the correct set of post-fertilization events is b,c, e.