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5 Written questions

5 Matching questions

  1. insertion
  2. ribozyme
  3. promoter
  4. anti-
  5. point mutation
  1. a opposite ex: anticodon
  2. b A change in a gene at a single nucleotide pair
  3. c A mutation involving the addition of one or more nucleotide pairs to a gene.
  4. d A specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA
  5. e An enzymatic RNA molecule that catalyzes reactions during RNA splicing.

5 Multiple choice questions

  1. In prokaryotes, a special sequence of nucleotides in DNA that marks the end of a gene. It signals RNA polymerase to release the newly made RNA molecule, which then departs from the gene.
  2. out, outside, without
  3. A cell organelle constructed in the nucleolus and functioning as the site of protein synthesis in the cytoplasm; consists of rRNA and protein molecules, which make up two subunits.
  4. The most common type of mutation, a base-pair substitution in which the new codon makes sense in that it still codes for an amino acid.
  5. A noncoding, intervening sequence within a eukaryotic gene.

5 True/False questions

  1. P siteOne 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. RNA splicingThe removal of noncoding portions (introns) of the RNA molecule after initial synthesis.

          

  3. intro-A noncoding, intervening sequence within a eukaryotic gene.

          

  4. deletion1) A deficiency in a chromosome resulting from the loss of a fragment through breakage. (2) A mutational loss of one or more nucleotide pairs from a gene.

          

  5. poly-opposite ex: anticodon