Question

Complete the flow charts with the correct steps
. What happens after the egg cell is fertilized:
1.

↓
2.
↓
3.
↓
4.

Answer 1

Explanation:

Fertilisation is the fusion of male gamete (sperm) with the female gamete (egg) to form a diploid zygote.

Hence the letters should be arranged in the following order to show the correct order in the process of fertilisation.

D,C,B,A.

D shows an egg cell containing a nucleus.

C shows the egg cell surrounded by many sperms which are trying to enter the egg cell.

B shows the sperm which got succeeded in entering the egg cell and the entry of other sperm cells is blocked by the egg cell.

A shows two nucleus in the egg cell, one of which belongs to the egg cell and the other is of sperm cell. These two nuclei will then fuse to form a diploid nucleus and a zygote will be formed.