Mitosis and meiosis

Question 1

Steps in:

Mitosis

Answer 1

1. Chromosomes are copied (now has 92)
2. The cell’s nucleus disappears and the chromosomes line down the middle of the cell. Spindle fibres are made at each end
3. The 2 copies of each chromosome are pulled apart by spindle fibers
4. The chromosomes move to different sides of the cell, which begins to split in 2.
5. the cell completely splits in 2. There are 2 daughter cells which are diploid and identical

Question 2

What are the steps for:

Meiosis

Answer 2

1. DNA is replicated, and some genes are swapped
2. Chromosomes line up in the centre
3. Chromosome pairs seperate
4. First cell division leading to 2 genetically different cells
5. Chromosomes line up in the centre
6. Chromosomes split
7. Second cell division leading to 4 haploid genetically different cells