Question

fertilisation and types???​

Answer 1

$\huge\mathtt{\underline{Fertilization:-}}$

Complete and permanent fusion of gametes from different parents for the same parent to form a diploid zygote.

$\huge\mathtt{\underline{Types:-}}$

There are two types of fertilization.

• External
• Internal

$\huge\mathtt{\underline{External:-}}$

Occurs outside the body of the organism medium required .

$\huge\mathtt{\underline{Internal:-}}$

Egg is form inside the female body where it fuse with male gamete.

Answer 2

Internal fertilization is characterized by sperm fertilizing the egg within the female; the three methods include: oviparity (egg laid outside female body), ovoviparity (egg held within female), and viviparity (development within female followed by live birth)

Explanation:

The stages of fertilization can be divided into four processes: 1) sperm preparation, 2) sperm-egg recognition and binding, 3) sperm-egg fusion and 4) fusion of sperm and egg pronuclei and activation of the zygote.

Fertilization: The process of combining the male gamete, or sperm, with the female gamete, or ovum. The product of fertilization is a cell called a zygote.