Question

OR
Give a labelled diagram of pistil showing in it the path of male gametophyte from the
stigne to the embryo sac.
2. Trace the events that would take place in a flower from the time the pollen grains of the
samt species fall on the stigma upto the completion of fertilisation. (CBSE 1998 (F)
3. Q How is the process of binary fission different from budding ?
21 What is grafting ?
ich List two advantages of vegetative propagation.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

2) A pollen grain on the stigma grows a tiny tube, all the way down the style to the ovary. This pollen tube carries a male gamete to meet a female gamete in an ovule. Once the pollen moves down the style, it reaches the ovules, that require sperm to fertilize them and produce new embryos.

3) Binary fission:

1. Parent cell cannot be identified since the parent cell itself gets divided into two daughter cells.
2. It is a type of fission.
3. Parent cell cannot be identified since the parent cell itself gets divided into two daughter cells .
4. A symmetric division.
5. EXAMPLE:Bacteria and archaes show binary fission.

Budding:

1. The formation of new bud from the parent organism is known as budding.
2. It is a type of vegetative propagation.
3. The parent cell gets detached from the new cell.
4. An symmetric division.
5. EXAMPLE:Yeast and hydra show budding