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Unformatted text preview: invertibrates)- small pop. size = genetic drift smaller population the bigger teh magnitude in error you can simply fail to select the allele (reduces teh variation) population bttleneck- sudden decrease of pop size- priare chicken if we decrease genetic drift, then the number of homozygotes increase and heterozygotes to decrease increasing the bad alleles-foundry everits( colonization) - egg islands humans- out of africa ideas (ancestors developed in Africa and spread out accordingly) colonization process in africa - high genetic diversity european - low molecular diversity in comparison funamentaly mutatition is an error in DNA replication or chromosome transmission generally muattions are a very rare event polyploids maybe be 30 percwnt of plants...
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This note was uploaded on 05/10/2010 for the course BIO 1B taught by Professor Carlson,mischel,power during the Spring '07 term at Berkeley.
- Spring '07