Question

please answer this question if you know the answer then only answer else reported ​

Answer 1

Answer:

(B) Sperm cell enters the egg cell and thus both the nuclei fuse with each other

Answer 2

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Which of the following phenomena occurs during fertilization?

• ( A ) Egg cell enters the sperm cell and thus both the nuclei fuse with each other.
• ( B ) Sperm cell enters the egg cell and thus both the nuclei fuse with each other.
• ( C ) Sperm and egg don't come in contact with each other but are just enclosed in a jelly bundle.

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• ( B ) Sperm cell enters the egg cell and thus both the nuclei fuse with each other.

$\huge\rm { ☆_!! Justification !_! ☆}$

• Here, this is clear that both sperm and egg fuse. So as the 3rd option saying will be wrong.
• Now ,we also know that the sperm has tail by which it swims and comes after ejaculation in fallopian tube where it enters the egg cell and fuse to form zygote.
• So, option ( B ) is the correct Answer.

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What is fertilization?

• The process of fusion of male and female reproductive cells or gametes is called fertilization.

Types of fertilization-

Fertilization can be -

• External
• Internal

External fertilization:

• When the fusion of male and female gametes takes place outside the body of the female , it is called external fertilization.

• External fertilization takes place in frog , fishes etc.

Internal fertilization:

• When the fusion of male and female gametes takes place inside the body of the female, it is called Internal fertilization.

• Internal fertilization takes place in humans, dogs, cows etc.

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