BIOA01H3 Lecture Notes - Lecture 2: Mutation, Phenotypic Plasticity, Antimicrobial Resistance
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BIOA01H3 Full Course Notes
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Adaptive radiation new things evolving/adapting after a catastrophic event. All life is linked by a common ancestor. Biological evolution: change in allele frequencies in populations, allele different version of a gene (shoe >nike, addidas, genetic changes in populations. Microevolution: changes within species, population, e. g. are oshawa flies evolving differently than ajax flies, natural selection, other evolutionary forces (chap 21) Microevolution: heritable variation in genetics of a population. Individuals of species at same time and place. E. g. microevolution under strong natural selection antibiotic resistance. Quantitative variation: characteristics with a range of variation, controlled by multiple genes, can be measured (e. g. height, graphed on histogram, pg 24 on slide. Qualitative variation: characteristics with distinct states, polymorphisms: distinct variants of character. E. g. presence of spines = yes or no. Where does this genetic variation come from and what causes it: mutation, recombination shuffles mutations to produce new sequences.
