Mention the role of miosis in creating variation in organisms
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Answer:
Meiosis is the process by which sexually reproducing organisms make their sex cells, sperm and eggs. During meiosis, a specialized cell called a germ cell splits to make four new sex cells, each with half the number of chromosomes as the original germ cell.
The significance of meiosis are as follows:-
Formation of gametes − Meiosis form gametes that are essential for sexual reproduction.
Genetic information − Meiosis switches on the genetic information for the development of gametes.
Maintenance of chromosome number − Meiosis maintains the fixed number of chromosomes in sexually reproducing organisms.
Assortment of chromosomes − In meiosis paternal and maternal chromosomes assort independently. It causes reshuffling of chromosomes and the traits controlled by them.
Crossing over − It introduces new combination of traits or variations.
Mutation − Mutations take place due to irregularities of meiotic division.