CAIE IGCSE Biology EXTENDED 17.2.3 Exact replication of chromosomes
CAIE IGCSE Biology EXTENDED 17.2.3 Exact replication of chromosomes
Practise explaining why chromosomes replicate before mitosis so daughter cells keep the same chromosome number and genetic information.
How this is tested
- state that DNA mass doubles before mitosis when chromosomes are copied
- explain that chromosome replication maintains chromosome number in daughter cells