CAIE IGCSE Biology EXTENDED 1.2.7 Groups of organisms which share a more
CAIE IGCSE Biology EXTENDED 1.2.7 Groups of organisms which share a more
Practise interpreting DNA-based trees and sequence comparisons to decide which organisms share recent or distant ancestors.
How this is tested
- use branching points on classification trees to identify the most closely related species
- explain distant relatedness from longer branch distances or many DNA base sequence differences
- complete a classification tree by placing species according to DNA sequence similarity