Stages of mitosis and meiosis with 3 chromosomes Inculude fe

Solution

Meosis.

Genetic variation is increased by meiosis

During fertilisation, 1 gamete from each parent which combines to form a fertilized zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote.

Recombination or crossing over occurs during prophase I. Homologous chromosomes – 1 inherited from each parent – pair along their lengths, geneby gene. Breaks occur along the chromosomes, and they rejoin, trading some of their genes results in generic variations of the new chromosomal..!

Independent assortment is also one of the process where the chromosomes move randomly to separate poles during anaphase. A gamete will end up with 23 chromosomes afters, but independent assortment means that each gamete will have 1 of many different combinations of chromosomes.

There is not so much increase in the genetic variation through mitosis as in this no two parents are involved one parent is involved..!! But any mutation in any stage like translocation, deleteion, insertion can bring a genetic variation but which may or may not occur..