(a) - Sister chromatids separate
- Sister chromatids move to opposite poles of spindle fibre
(b)The significance of meiosis
- 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.
johnmulu answered the question on May 9, 2017 at 09:35
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