CAIE IGCSE Biology EXTENDED 18.1.9 Gene mutation as a random change
CAIE IGCSE Biology EXTENDED 18.1.9 Gene mutation as a random change
Practise defining gene mutation as a random DNA base-sequence change and recognising base substitutions in short sequences.
How this is tested
- describe a gene mutation as a random change in the base sequence of DNA
- interpret DNA triplets to distinguish a base substitution from addition or deletion