BIOA01H3 Lecture Notes - Lecture 3: Mendelian Inheritance, Mutation, Microevolution

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Fitzpatrick

Document Summary

Lec 3 | ch 21: artificial selection gives genetic variation (not natural breeding, e. g. cabbage, dogs. Assessing genetic variation: can assess observable phenotypic variation (phenotype=genotype, me(cid:374)del(cid:859)s peas, snapdragon, can measure genetic variation directly, many cheap and high-throughput methods, many based on pcr (polymerase chain reaction) Population genetics: populations made up of individuals of the same species, each with own genotype, for evolution to occur, individuals within a population must differ genetically, not all populations evolving. Population: a population is a group of individuals of the same species live in the same area and interbreed, producing fertile offspring. Individuals within a population are more closely related to each other than to members of other populations: different populations of the same species may be isolated from each other such that gene flow is rare. Gene pool: ca(cid:374) (cid:272)ha(cid:396)a(cid:272)te(cid:396)ize a populatio(cid:374)(cid:859)s ge(cid:374)eti(cid:272) (cid:373)akeup (cid:271)(cid:455) des(cid:272)(cid:396)i(cid:271)i(cid:374)g its ge(cid:374)e pool, this is the sum of all alleles at all gene loci in all individuals.