polydactyly

    Cards (13)

    • What is a characteristic of polydactyly II?
      Extra fingers or toes
    • What type of allele causes polydactyly II?
      Dominant allele
    • Can a person be a carrier of the polydactyly allele?
      No, you cannot be a carrier
    • What are the genotypes of a heterozygous man and a homozygous normal woman in a cross?
      Man: heterozygous, Woman: homozygous normal
    • What is the expected ratio of offspring in the cross between a heterozygous man and a homozygous normal woman?
      1:1 polydactyly to unaffected
    • What does it mean that the offspring percentages are probabilities?
      All offspring could have either trait
    • What is embryo screening used for?
      To test for inherited disorder alleles
    • What happens to embryos that have defective alleles?
      They are not implanted
    • What is a major ethical concern regarding embryo screening?
      Destruction of healthy embryos
    • What is a potential future use of embryo screening?
      To produce offspring with desirable features
    • What is gene therapy?
      Correcting faulty alleles to treat disorders
    • Is gene therapy currently widely used?
      No, it is still experimental
    • What are the issues surrounding embryo screening?
      • Expensive process
      • Ethical concerns about embryo destruction
      • Potential for selecting desirable traits