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Describe significance of meiosis.
Answer
Meiosis is very important in the following ways. 

1. Formation of gametes. Meiosis produces gametes in animals for sexual reproduction.

2. Formation of spores. Meiosis produces spores in plants for asexual reproduction.

3. Maintenance of chromosome number. Meiosis reduces the chromosome number in the gametes so that fertilization may restore the original diploid number in the zygote.

4. Introduction of variations. Meiosis provides a chance for the formation of new combinations of alleles and chromosomes. This brings about variations which cause evolution. The new combinations of alleles are produced by crossing-over in prophase-I.