Question

1(i) What is fertilisation? Distinguish between external fertilisation and internal
fertilisation.
(ii) What is the site of fertilisation in human beings?
2..What is the effect of DNA copying which is not perfectly accurate on the reproduction process?


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Answer 1

Answer:

the action or process of fertilizing an egg or a female animal or plant, involving the fusion of male and female gametes to form a zygote.

Answer 2

Answer:

Fertilization - the fusion of male and female gamete to form a Zygote is called fertilization.

1. External fertilization - in which the fertilization occurs outside the body example the development of frog from egg.
2. Internal fertilization - in which the fertilization occurs inside the body example development of a human baby.

ii) site for human fertilization is fallopian tube or oviduct.

2)effect of DNA copying which is not perfectly accurate on the reproduction process causes many disabilities like

• Mutations (like some organ are not develop properly, a organs which is extra grow etc.