Unit 3 Homework - Unit 3 Gene Homework Part 1 Mendelian Problems Practice these problems to hone your skills at inheritance patterns They are set up as

Unit 3 Homework - Unit 3 Gene Homework Part 1 Mendelian...

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Unit 3. GeneHomeworkPart 1: Mendelian ProblemsPractice these problems to hone your skills at inheritance patterns. They are set up as multiple-choice to give you some possible answers as guidelines. Your SI will be most helpful at working through any that you need assistance with. 1. In lilies, white flowers ( W ) are dominant to purple flowers ( w ). If two plants that are heterozygous for flower color are mated, the offspring might have which genotype? a.WWb.Wwc.wwd.All of the abovee.None of the above 2.In a pea plant that is heterozygous for seed color, what proportion of gametes will carry the recessive allele? 3.In his experiments, Mendel noted that when two traits are involved in a genetic cross, they are inherited independently of each other. The reason for this is that 4.In a test cross between an individual with an unknown genotype that exhibits the dominant phenotype and a known homozygous recessive individual, the progeny showed a 1:1 ratio of dominant to recessive phenotypes. The individual of unknown genotype is therefore ___________ for that gene.
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5. 6. You breed two F1 generation rabbits that are heterozygous for two genes, A and B. In the second filial generation, or F2, how many genotypic classes are possible with a dihybrid cross? (the genes involved show complete dominance) a. 3 b. 4 c. 8 d. 9 e. 12 6.7. In the F2generation, how many genotypic classes are possible from a trihybrid cross of two heterozygotes in which the genes involved show complete dominance? a.2 b.8 c.16 d.27e.61 7.10. Joe's father expresses a recessive trait and his maternal grandmother also expressed this trait. Joe marries a woman with a brother expressing the same recessive trait. What is the likelihood that the newlyweds could have a child expressing the trait? (Assume anyone who has not been mentioned is not expressing this trait)
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  • Spring '14
  • Avery
  • Genetics, recessive allele, recessive trait

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