ANT 2000 Lecture Notes - Lecture 2: Genetic Drift, Meiosis, Mutation Rate
10 Dec 2013
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Document Summary
Beagle expedition (1831-1836) = charles darwin"s journey around the world, mapping areas that had not been mapped before as well as studying the life there; started out in england. Species vary according to the environments they inhabit; some animals have characteristics that would favor survival and others do not; led to theory of natural selection, origin of species (1859) Traits are passed on through genes, segments of molecules of dna (deoxyribonucleic acid = (1953) james watson and francis crick) Dna forms into long strands, chromosomes, that are found in the nucleus of cells. Gregor mendel (1866) = monk and avid farmer, mathematician. Law of segregation = variants of genes for a particular trait retain their separate identities through the generations. Law of independent assortment = genes controlling different traits are inherited independently of one another. Genes come in a variety of forms, which we call alleles. Get a combo of alleles from each of our parents.
