IB Biology SL D3.2.13 Pedigree charts
IB Biology SL D3.2.13 Pedigree charts
Practise reading pedigree charts to infer inheritance patterns, assign genotypes, draw Punnett grids and calculate offspring probabilities.
How this is tested
- compare pedigree evidence for autosomal, sex-linked, dominant and recessive patterns
- determine possible genotypes for named individuals from affected relatives
- calculate offspring risk from a pedigree and justify it with a Punnett grid