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Question

what is the difference between vitro fertilization and external fertilization

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Solution

In animals such as frogs and fishes, the process of fertilization takes place outside the body. This type of fertilization is known as external fertilization. In external fertilization, both the male and the female release their gametes in water. The gametes then fuse in water and result in the formation of a zygote, which develops into a new individual.

In vitro (within glass) fertilization is made to occur outside the body in an artificial medium. The sperms from male and eggs from female can also be made to fertilise outside the body of mother in a test tube in laboratory called in-vitro fertilisation. The fertilised egg is then transferred back into body of female. Here sexual contact is not necessary.


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