Mutations as the source of variation: causes, new alleles and differential survival

What this note covers

1. Gene and chromosome mutations alter genetic material
2. Replication and cell-division errors can create mutations
3. Mutagens increase the probability of genetic damage
4. Mutation is the ultimate source of new alleles
5. Genotype, phenotype and environment determine survival effects
6. Mutation evidence supports cautious predictions

6 sections · 10 key terms & formulas · 6 common mistakes