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of 66 available terms

5 Written Questions

5 Matching Questions

  1. Polysome
  2. Mutation
  3. Ribosomal RNA
  4. Proto-oncogene
  5. Polarity
  1. a Structural change to genetic material - either to a gene or to a chromosome.
  2. b Three types of RNA that form an important structural and functional role within the ribosome.
  3. c Refers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.
  4. d Gene that can undergo mutations to become an oncogene, which induces tumour formation (cancer).
  5. e A length of messenger RNA carrying multiple ribosomes at different stages of protein synthesis.

5 Multiple Choice Questions

  1. Term to describe the engulfing by macrophages of vesicles from cells that have undergone apoptosis.
  2. The triplet code recognised by the ribosome that signals the start point for translation. Almost invariably a methionine codon (ATG).
  3. A sequence of three bases that codes for a single amino acid according to the genetic code.
  4. These direct the development of individual body segments. They are master genes that control other regulatory genes.
  5. Having two sets of chromosomes (eukaryotic cell or organism). Denoted by 2n.

5 True/False Questions

  1. Neutral mutationA mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.

          

  2. Hox clustersSpecific position on a chromosome, occupied by a specific gene.

          

  3. Hayflick limitTerm to describe the engulfing by macrophages of vesicles from cells that have undergone apoptosis.

          

  4. BlebSmall vesicle formed that breaks away from the cell membrane during apoptosis

          

  5. Genetic codeThe way in which the 64 possible base triplets map onto the 20 amino acids that are used in polypeptide chains.

          

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