What you'll learn
How characteristics are inherited.
Key ideas
- DNA, genes, alleles; dominant and recessive.
- Meiosis; Punnett squares; sexual vs asexual reproduction.
Exam tips
- Use a Punnett square for ratios.
- Distinguish genotype and phenotype.
Common mistakes
- Confusing genotype and phenotype.
- Muddling mitosis and meiosis.