Question

Fertilization in human beings. Explain how the male gametes travel , from where they travel, how they fuse..

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Answer 1

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How does Fertilization occur in Humans?

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→When the Male Gametes are ready to fuse in With Female Gametes,Thats when The Male Gametes enters the Female body to fuse with the Egg cell after Fusion The Egg cell/ova forms an Embryo which is Covered with uterus and supply it Various Nutrients.

→The Human Gametes Enter The Body through a Female's Vagina where They all Race through the Fallopian tube to Reach the Egg Cell where they Fuse, Many die because Their are Survival Conditions and Only the fittest of the Fittest could Survive and Fuse with the Egg Cell.

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Answer 2

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• Fusion of male and female gametes which eventually forms a zygote is known as Fertilization

• Fertilization can be internal or external in different organisms

• The zygote divides mitotically forming a blastula,grastula and an inevitable foetus

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• The sperms (male gametes ) have a tail part,neck and a head part. The tail provides them motility,the neck provides them energy and the head part contains necessary enzymes to break the barrier of ovum

• During an intercourse,the sperms are released through the vulva into vagina. The sperms further swim upto the fallopian tubes.

• When in contact they fuse with the egg forming a zygote.

• Many sperms are released in semen but only one can fuse with the ovum

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