GEN-3000 Lecture Notes - Lecture 4: Phenotypic Trait, Y Chromosome, Chromosome
31 Aug 2020
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Functionally, her a b o blood group behaves as type o. Genetically, she is type b: family pedigree showing inheritance of. 8: the white locus in drosophila, drisophila, many alleles known at practically every locus, recessive mutation that causes white eyes discovered in. Final phenotypes are calculated by considering both genes separately and then combining the results using the forked-line method. 13: effects of epistasis, gene interaction reveals inheritance patterns that modify. 9:3:3:1 ratio: epistasis has effect on one or more of four phenotypic categories, generation of the various modified dihybrid ratios from the nine unique genotypes produced in a cross between individuals who are heterozygous at two genes. The four groupings of the f2 genotypes shown in figure 4. 6 and across the top of this figure are combined in various ways to produce these ratios. The actual f2 data are shown in parentheses. Photographs of red and white eyes are shown in chapter 1, figure 1. 3: x-linked inheritance.
