Unit 2 Cell division

2.1 cell division

You have 46 chromosomes which are in 23 pairs

The cells cycle

Stage 1: the cell grows bigger while it carries out normal cell activities, they also replicate their DNA to form two copies of each chromosome.  They also increase the amount of mitochondria and ribosomes they have. This is the longest part of the cell

cycle.

Stage 2: Mitosis: one set of chromosomes is pulled to each end of the dividing cell and the nucleus divides.

Stage 3: the cytoplasm and the…