10 1 Lecture Summary Hardy Weinberg Equilibrium Random Genetic Effect What is Evolution Change through time change in genetic makeup of biological pops through time Study in the change on an allele frequency in a population through time Total collection of the alleles of a gene in a population Population genetics Gene Pool p Fraction of gene pool with dominant allele q Fraction of gene pool with recessive allele p q 1 00 p 2 f A1A1 Homo Dom q 2 f A2A2 Homo Rec 2pq f A1A2 Hetero HW Principle p 2 2pq q 2 1 00 Genotypes will not change HW in effect if No natural selection No differential migration Genetic drift change in the frequency of an allele in a pop due to random sampling Random mating Large population no genetic drift or random genetic changes Small populations do not have large number of possible variations for alleles Founder effect small population sample does not represent the whole Bottleneck refers to whenever there is a huge population crash
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