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of 66 available terms

5 Written Questions

5 Matching Questions

  1. Crossing over
  2. Proto-oncogene
  3. Polyploid
  4. Diploid
  5. Homeobox genes
  1. a Eukaryotic organisms or cell with more than two sets of chromosomes.
  2. b Gene that can undergo mutations to become an oncogene, which induces tumour formation (cancer).
  3. c Where non-sister chromatids exchange alleles during prophase I of meiosis.
  4. d Genes that control the development of the body plan of an organism.
  5. e Having two sets of chromosomes (eukaryotic cell or organism). Denoted by 2n.

5 Multiple Choice Questions

  1. A short length of about 100 RNA nucleotides that adopts a clover leaf structure and carries an amino acid to the ribosome to be incorporated into a growing polypeptide chain.
  2. All the genetic information within an organism/cell.
  3. A length of DNA that codes for one (or more) polypeptides/proteins. Some may code for RNA or regulate other genes.
  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 different alleles for a specific gene.

5 True/False Questions

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

          

  2. HaploidEukaryotic cell or organism having only one set of chromosomes. Denoted by n.

          

  3. Hox clustersGroups of homeobox genes. More complex organisms have more such groups, probably due to a mutation that duplicated them.

          

  4. Frameshift mutationA change in the DNA within a gene involving the insertion or deletion of a number of bases that is not a multiple of three. This causes the downstream gene sequence to be scrambled because the correct reading frame is lost.

          

  5. LocusSpecific position on a chromosome, occupied by a specific gene.

          

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