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5 Written Questions

5 Matching Questions

  1. Coding strand
  2. Template strand
  3. Stop codon
  4. Neutral mutation
  5. Polyploid
  1. a The DNA strand encompassing a gene that carries the sequence identical to the message sequence.
  2. b The DNA strand that is used for assembly of mRNA by RNA polymerase using base-pairing rules. Complementary to the message sequence.
  3. c A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.
  4. d Eukaryotic organisms or cell with more than two sets of chromosomes.
  5. e One of three triplet codes (UGA, UAG or UAA) that causes the termination of translation by the ribosome.

5 Multiple Choice Questions

  1. A length of messenger RNA carrying multiple ribosomes at different stages of protein synthesis.
  2. Genes that control the development of polarity within a body segment during development.
  3. Structural change to genetic material - either to a gene or to a chromosome.
  4. Structure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.
  5. Eukaryotic cell or organism that has two identical alleles for a specific gene.

5 True/False Questions

  1. Central dogmaThe fundamental relationship between DNA, RNA and protein first outlined by Francis Crick in 1958.

          

  2. 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.

          

  3. DNA mutationA change to the DNA structure altering the sequence of bases.

          

  4. transfer RNAStage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.

          

  5. Programmed cell deathGene that can undergo mutations to become an oncogene, which induces tumour formation (cancer).

          

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