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5 Written questions

5 Matching questions

  1. Heterozygous
  2. Chiasmata
  3. Ribosomal RNA
  4. Mutation
  5. Stutter mutation
  1. a The points where non-sister chromatids within a bivalent join, where they cross over.
  2. b Structural change to genetic material - either to a gene or to a chromosome.
  3. c Eukaryotic cell or organism that has two different alleles for a specific gene.
  4. d Three types of RNA that form an important structural and functional role within the ribosome.
  5. e Causes an expansion or contraction of a run of identical codons within a gene affecting the length of a run of identical amino acids in the polypeptide.

5 Multiple choice questions

  1. All the genetic information within an organism/cell.
  2. A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.
  3. Alleles present within cells of an individual, for a particular trait/characteristic.
  4. Macromolecule that is a polymer of many amino acids joined by peptide bonds. May comprise more than one polypeptide chains.
  5. Eukaryotic cell or organism that has two identical alleles for a specific gene.

5 True/False questions

  1. ApoptosisProgrammed cell death. An orderly process by which cells self-destruct in an orderly fashion after a certain number of cell divisions, or if they cannot repair DNA damage.


  2. Central dogmaThe way in which the 64 possible base triplets map onto the 20 amino acids that are used in polypeptide chains.


  3. MorphogenCharacteristic coded for by one gene.


  4. Proto-oncogeneGenes that control the development of the body plan of an organism.


  5. Sexual reproductionProduction of new organisms involving fusion of nuclei from male and female gametes, usually from unrelated individuals. Increases genetic variation in the population.