Question

Fill in the blanks. 1. Fertilization occurs after ________.
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Answer 1

Answer:

Fertilisation occurs when ova and sperm combines to form zygote

Answer 2

Answer:

• Fertilization occurs after the successfull meet up of sperm and an egg cell in the fallopian tube.
• As the sperm travels to fallopian tube and penetrates layer of ovum called as zona pellucida.
• It fuses to form zygote.
• It is describe by the following stages :

1. Sperm capacitation
2. Sperm zona pellucida
3. Acrosome reaction
4. Penetration of the zona pellucida
5. Sperm-Oocyte binding
6. Cortical reaction and egg activation
7. Zona reaction
8. Post fertilization event.