Biology
Inheritance patterns and pedigrees
A lesson shell for genotype, phenotype, allele interactions, Punnett squares, pedigrees, linkage, and chi-squared analysis.
Lesson progress
Distinguish genotype and phenotype.Interpret common inheritance patterns.Use statistical reasoning to compare observed and expected inheritance outcomes.
Inheritance questions connect gene variants to observable traits, while pedigrees and crosses help infer patterns across generations.
Definition
Gene pool
The collection of alleles present in a population.
Worked example
Pedigree review workflow
- Identify whether affected individuals appear in every generation.
- Check whether unaffected parents can have affected offspring.
- Compare male and female expression patterns.
- Use the evidence to propose a likely inheritance model.
Figure needs redraw
Reference figure to redraw: autosomal and sex-linked pedigree patterns.
Reference asset tracked internally.