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5 Written questions

5 Matching questions

  1. mutation that affects a single nucleotide, usually by substitutin one nucleotide for another
  2. a three-nucleotide sequence on messenger RNA that codes for a single amino acid
  3. the change in DNA sequence that affects genetic information
  4. rRNA, a type of RNA that makes up the major part of ribosomes
  5. a virus that infects bacteria
  1. a point mutation
  2. b ribosomal RNA
  3. c codon
  4. d mutation
  5. e bacteriophage

5 Multiple choice questions

  1. operon
  2. histone
  3. transfer RNA
  4. replication
  5. base pairing

5 True/False questions

  1. the enzyme that "proofreads" new DNA strands, helping to ensure that each molecule is a nearly perfect copy of the original DNAexon

          

  2. an intervening sequence of DNA; does not code for a proteinintron

          

  3. the expressed sequence of DNA; codes for a proteinintron

          

  4. a region of chromosome in an operon to which the repressor binds when the operon is "turned off"operator

          

  5. a group of three bases on a tRNA molecule that are complementary to an mRNA codonmutation

          

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