BIOL 1202 Lecture Notes - Lecture 3: Mendelian Inheritance, Mutation Rate, Point Mutation
Document Summary
The wings of a bat and the forelimbs of a human. The hemoglobin of a baboon and that of a gorilla. The legs of a bird and those of an insect- analogous; not because of common ancestors. The mitochondria of a plant and those of an animal. The smallest unit of evolution: one common misconception about evolution is that individual organisms evolve during their lifetime, evolutionary processes (e. g. , natural selection) act on individuals, but populations evolve. Mutation: mutations: changes in nucleotide sequence of dna. In sexually reproducing organisms, sexual recombination produces most of the variability in each generation. Variation within a population: discrete characteristics: classified on a n either-or basis. E. g. , flower color in pea plants: quantitative characters: vary along a continuum within a population. Concept 23. 2: the hardy- weinberg equation can be used to test whether a population is evolving.
