Natural Selection and Microevolution

Current Understanding of Natural Selection

Neo-Darwinism generally denotes the integration of Darwin’s theory of evolution by natural selection and Mendel’s theory of genetics as the basis for biological inheritance. Remember, mutation is the ultimate source of genetic variation as it introduces new alleles to a population. (QCAA specific sentence)

Examples of Natural Selection

Antibiotic resistant bacteria

(e.g. MRSA: methicillin-resistant Staphylococcus aureus)

Insecticide Resistance