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Unformatted text preview: GR Gr gR gr Gr GGRr GGrr GgRr Ggrr Gr GGRr GGrr GgRr Ggrr gr GgRr Ggrr ggRr ggrr gr GgRr Ggrr ggRr ggrr ¼ of offspring are homozygous at both loci 4. Below is a sample pedigree for a fictional trait: orange eye color. Circles represent females and squares represent males. Filled symbols represent individuals who have orange eyes. a. What are the genotypes for each individual? You can write this next to the symbol on the pedigree. Please use the symbols (E) for dominant and (e) for recessive alleles. b. What is the inheritance pattern for this trait? Orange eyes are dominant. c. If individual 3b has children with a normal individual (one with eyes that aren’t orange), what are the possible genotypes for those offspring? What are the probabilities of each genotype? E e 3b is Ee. A normal individual is “ee.” The possible phenotypes are e Ee ee Ee and ee, with a 50% probability of each. e Ee ee...
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- Fall '08
- Genetics, 50%, Zygosity, gr gr gr, ggrr ggrr ggrr