Chapter 20 Review: 19631/5025546

  1. The polymerase chain reaction (PCR) uses ________ in the annealing step.
    1. primers <==== correct
    2. plasmids (wrong)
    3. ribosomes (wrong)
    4. nucleosomes (wrong)
    5. RNA polymerase (wrong)
      Hint
  2. cDNAs are DNA copies made from mature mRNAs which contain only
    1. exons. <==== correct
    2. introns. (wrong)
    3. mature mRNA. (wrong)
    4. pre-mRNA. (wrong)
    5. promoters. (wrong)
      Hint
  3. DNA sequencing can be done by using fluorescent ________ for chain termination.
    1. ribonucleotides (wrong)
    2. dideoxyribonucleotides <==== correct
    3. cDNA (wrong)
    4. rRNA (wrong)
    5. tRNA (wrong)
      Hint
  4. ________ are circular DNA molecules that replicate separately from the bacterial chromosome.
    1. Plasmids <==== correct
    2. Plastids (wrong)
    3. Capsids (wrong)
    4. Chromatids (wrong)
    5. Phospholipids (wrong)
      Hint
  5. Complementary sticky ends produced by restriction enzymes can be re-sealed with the enzyme
    1. DNA ligase. <==== correct
    2. DNA polymerase. (wrong)
    3. RNA polymerase. (wrong)
    4. reverse transcriptase. (wrong)
    5. transcriptase. (wrong)
      Hint
  6. Embryonic stem cells are ________, able to differentiate into all cell types.
    1. omnipotent. (wrong)
    2. impotent. (wrong)
    3. polypotent. (wrong)
    4. totipotent. <==== correct
    5. pluripotent. (wrong)
      Hint
  7. A(n) ________ cell can reverse its differentiation and then give rise to all the cell types.
    1. totipotent. <==== correct
    2. pluripotent. (wrong)
    3. omnipotent. (wrong)
    4. impotent. (wrong)
    5. polypotent. (wrong)
      Hint
  8. A technique for cloning animals is
    1. stem cell cloning. (wrong)
    2. fingerprint analysis. (wrong)
    3. PCR. (wrong)
    4. genomic libraries. (wrong)
    5. nuclear transplantation. <==== correct
      Hint