Mutations: Changes In The Genetic Material

25 Questions | Total Attempts: 74

SettingsSettingsSettings
Please wait...
Mutations: Changes In The Genetic Material

Biologically speaking, mutation is the permanent change in the generic constitution of a nucleotide, virus or genetic elements. How well do you understand these changes in the genetic material? Take up the challenge below and find out!


Questions and Answers
  • 1. 
    A mutation that changes the chromosome number of an organisms from 2N to 4N is called ______.
  • 2. 
    A mutation that adds or subtracts a whole set of chromosomes is called ________.
  • 3. 
    A mutation that adds or subtracts one (or two, or three, ...) chromosomes is called ________.
  • 4. 
    Down Syndrome is also called ________.
  • 5. 
    Trisomy 21 is also called __________.
  • 6. 
    A human with two Xs and one Y has ________ Syndrome. (No "apostrophe s")
  • 7. 
    A human with one s and no Ys has ________ Syndrome. (No "apostrophe s")
  • 8. 
    The incident of Down Syndrome is increase with _______ age.
  • 9. 
    Unequal crossing over generates tandem duplications and _________.
  • 10. 
    Unequal crossing over generates deletions and _________.
  • 11. 
    Homologous unequal crossing over is thought to have produced the abnormal _______ molecule that is the fusion of the delta polypeptide and the beta polypeptide.
  • 12. 
    Homologous unequal crossing over is thought to have produced the abnormal delta/beta fusion hemoglobin molecule that is found in patients with the genetic disease called ________.
  • 13. 
    Female Drosophila melanogaster homozygous for the Bar-eye mutation can produce some ultrabar (double bar) flies with very narrow eyes and some with ________ eyes. This is due to homologous unequal crossing over.
  • 14. 
    A crossover within the inversion loop of a paracentric inversion heterozygote produces
    • A. 

      A dicentric bridge

    • B. 

      An acentric fragment

    • C. 

      Gametes with a deletion

    • D. 

      All of the above

  • 15. 
    An inversion that includes the centromere is called a (an) _________ inversion.
  • 16. 
    X rays are a type of _______ radiation.
  • 17. 
    UV causes the specific type of DNA damage called _________.
  • 18. 
    The ______ tautomer of thymine is much more common than the enol tautomer.
  • 19. 
    Keto - enol _________ can result in a base substitution.
  • 20. 
    A (an) _______ agent insert between adjacent bases of DNA and can cause single base insertions and deletions.
  • 21. 
    If a mutation results in a GC pair changing to a CG pair, then it is the type of base substitution called a (an) ______.
  • 22. 
    A mutation that results in the AGG codon changing to AGC would be a _______ mutation.
  • 23. 
    A mutation that results in the AGG codon changing to AGA would be a _______ mutation.
  • 24. 
    A mutation that results in the AAG codon changing to UAG would be a _______ mutation.
  • 25. 
    A ______ mutation results when a single nucleotide is inserted or deleted within the coding region of a gene.