Genetic review for test

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Genetic review for test

  1. 1. Genetics Quiz: Punnett Squares1.) A homozygous normal winged fly is crossed with a homozygous vestigial winged fly. Normalwings are dominant to vestigial wings. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.2.) Two heterozygous parents are crossed. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
  2. 2. Genetics Quiz: Punnett Squares1.) A heterozygous normal winged fly is crossed with a homozygous vestigial winged fly. Normal wings aredominant to vestigial wings. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.2.) Two heterozygous flies are crossed. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
  3. 3. Genetics Quiz: Punnett Squares1.) In humans, brown eyes are dominant over blue. A brown-eyed man marries a blue-eyed woman and they havethree children, two of whom are brown-eyed and one of whom is blue-eyed. a.) Using what you know about the offspring, identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross that shows the possibilities of these children.2.) A homozygous dominant man and a homozygous recessive woman want to knowthe color of their childrens eyes. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.
  4. 4. Genetics Punnett Square Quiz1.) Deafness is a recessive disorder in certain breeds of dogs. A deaf male and a hearing female are crossed, andtheir litter contains puppies that are both hearing and deaf. a.) Identify each parental genotype. b.) Identify each parental phenotype. c.) Do a cross to determine the genotype and phenotype ratios for the offspring.2.) Two hearing dogs are mated. Their litter of puppies contains hearing to deaf dogs in a 3:1 ratio.a.) Identify each parental genotype.b.) Identify each parental phenotype.c.) Do a cross to determine the genotype ratios for these offspring. As part of your answer, circle the genotype thatcreates a deaf dog.

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