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5 Written Questions

5 Matching Questions

  1. primary transcript
  2. template strand
  3. deletion
  4. frameshift mutation
  5. A site
  1. a A mutation occurring when the number of nucleotides inserted or deleted is not a multiple of three, resulting in the improper grouping of the following nucleotides into codons.
  2. b An initial RNA transcript; also called pre-mRNA when transcribed from a protein-coding gene
  3. c 1) 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.
  4. d 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.
  5. e The DNA strand that provides the template for ordering the sequence of nucleotides in an RNA transcript.

5 Multiple Choice Questions

  1. A change in a gene at a single nucleotide pair
  2. A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
  3. An RNA molecule that functions as an interpreter between nucleic acid and protein language by picking up specific amino acids and recognizing the appropriate codons in the mRNA.
  4. The synthesis of a polypeptide using the genetic information encoded in an mRNA molecule. There is a change of languagefrom nucleotides to amino acids
  5. The synthesis of RNA on a DNA template.

5 True/False Questions

  1. promoterA specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA


  2. exo-A coding region of a eukaryotic gene or expressed region


  3. trans-opposite ex: anticodon


  4. RNA processingModification of RNA before it leaves the nucleus, a process unique to eukaryotes.


  5. poly-A tailThe modified end of the 3' end of an mRNA molecule consisting of the addition of some 50 to 250 adenine nucleotides.


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