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5 Written questions

5 Matching questions

  1. ribozyme
  2. signal-recognition particle (SRP)
  3. base-pair substitution
  4. messenger RNA (mRNA)
  5. poly-A tail
  1. a A type of point mutation; the replacement of one nucleotide and its partner in the complementary DNA strand by another pair of nucleotides.
  2. b An enzymatic RNA molecule that catalyzes reactions during RNA splicing.
  3. c A type of RNA, synthesized from DNA, that attaches to ribosomes in the cytoplasm and specifies the primary structure of a protein.
  4. d The modified end of the 3' end of an mRNA molecule consisting of the addition of some 50 to 250 adenine nucleotides.
  5. e A protein-RNA complex that recognizes a signal peptide as it emerges from the ribosome.

5 Multiple choice questions

  1. One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the growing polypeptide chain. (P stands for peptidyl tRNA
  2. The synthesis of RNA on a DNA template.
  3. One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the next amino acid to be added to the polypeptide chain.
  4. One of a ribosome's three binding sites for tRNA during translation. The place where discharged tRNAs leave the ribosome.
  5. opposite ex: anticodon

5 True/False questions

  1. frameshift mutationA change in a gene at a single nucleotide pair

          

  2. poly-many

          

  3. 5' capThe modified end of the 3' end of an mRNA molecule consisting of the addition of some 50 to 250 adenine nucleotides.

          

  4. TATA boxA rare change in the DNA of a gene, ultimately creating genetic diversity.

          

  5. transfer RNA (tRNA)A type of RNA, synthesized from DNA, that attaches to ribosomes in the cytoplasm and specifies the primary structure of a protein.

          

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