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Unformatted text preview: uncle niece, first cousins) there is a chance that the same defective allele was inherited from a common ancestor. This means that for such a gene, the chance of having an affected child is much greater than if the partner was a non-relative. The realization that R'R Genotypes % Heterozygous f(R') f(R) 100 0.5 0.5 Generation 1 2 1R'R' 2R'R 1RR 50 0.5 0.5 (selfing, assuming 4 progeny per plant in a perfect ratio) 3 6R'R' 4R'R 6RR 25 0.5 0.5 4 28R'R' 8R'R 28RR 12.5 0.5 0.5 consanguineous marriages increase the risk of exposing a rare defective allele has led most cultures to make marriages between close relatives taboo....
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This note was uploaded on 04/29/2008 for the course GENE 310 taught by Professor Magill during the Spring '08 term at Texas A&M.
- Spring '08