what is significance of fertilization?

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Ankita Agarwal answered this

1. The fertilization of an egg initiates the life.

2. It results in mixing of genes from two different individuals, thus producing a totally unique set of chromosomes for a new individual

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Guru Prasad Singh answered this

The significance of fertilisation are as follows-->

1.It rises to formation of a new organism/In case of plants it develops into a fruit.

2. It is the successful formation of zygote by the fusion of sex_ germ cells that are female and male gametes.

3. It leads to a successful reproduction attempt.

4. It ultimately leads to a replication of a new organism as an offspring.

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Kavya Shabu answered this

(i) Restoring Diploidy. Fertilization brings together two haploid nuclei and restores the diploid number in the zygote.

(ii) Introducing Variations. By introducing a paternal set of chromosomes through the sperm, it brings a new set of genes. The maternal and paternal genes interact and introduce variation in the offspring. This is important in evolution.

(iii) Egg Activiation. It converts a physiologically and metabolically inactive or inert egg cell into synthetically active one. The unfertilized egg contains abundant RNA and ribosomes. Within minutes of fertilization the protein synthesizing machinery is turned on rapidly as a preparation for cell division.

(iv) Initiating Development. It activates the egg to start development by a series mitotic divisions, together referred to as cleavage.

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