Question

Fusion of the egg and sperm is called 1 zygote formation 2 reproduction 3 fertilization 4 mixing

Answer 1

Answer: Fertilization

Fertilisation is the phenomenon which occurs when a sperm enters the ovum to fertilise it.

Reproduction is the general term for production of offsprings by parents. Fertilisation of gametes to form zygote is a mode of  sexual reproduction. another mode is asexual reproduction which does not involve fusion of gametes.

 Zygote formation is the end product of fertilisation process when the nucleus of sperm fuses with the nucleus of egg to restore the diploid condition. 

Mixing is a general term which relates to mixing of DNA from the gametes to form a zygote which would have DNA of both parents.

Answer 2

The fusion of female egg and male sperms can be simply termed as fertilization. The result of the process fertilization will result in the formation of a fertilized egg which give rise to a new embryo in a species.

The history of the discovery of the process fertilization dates back to 1875. O. Hertwig, a German scientist discovered the very nature of fertilization. A joint effect of some scientists with O. Hertwig claimed the involvement of fusion of egg and spermatozoa in the process of fertilization.  

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