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5 Written questions

5 Matching questions

  1. Monogenic
  2. Silent mutation
  3. Genetic variation
  4. Meiosis
  5. Central dogma
  1. a Characteristic coded for by one gene.
  2. b Variation of genetic information in a gene pool.
  3. c A change in DNA sequence within a gene that does not lead to a change in the amino acid sequence due to the degeneracy of the genetic code.
  4. d The fundamental relationship between DNA, RNA and protein first outlined by Francis Crick in 1958.
  5. e Type of nuclear division. A reduction division. The chromosome number is halved. It involves two divisions. It produces cells that are genetically different from each other and from the parent cell.

5 Multiple choice questions

  1. Three types of RNA that form an important structural and functional role within the ribosome.
  2. One of three triplet codes (UGA, UAG or UAA) that causes the termination of translation by the ribosome.
  3. Eukaryotic cell or organism that has two different alleles for a specific gene.
  4. Genetic variation where there are distinct phenotypic categories. Usually controlled by one gene to a few genes. Examples include cystic fibrosis, shape of earlobes in humans and height in pea plants.
  5. Alleles present within cells of an individual, for a particular trait/characteristic.

5 True/False questions

  1. Genetic reassortmentVariation introduced due to the random orientation and subsequent segregation of maternal and paternal chromosomes during meiosis 1, or sister chromatids at meiosis 2.

          

  2. PolarityRefers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.

          

  3. Insertion/deletion mutationA change in DNA sequence that introduces a premature stop codon within a DNA coding sequence.

          

  4. BlebAn alternative version of a gene carrying sequence differences.

          

  5. Crossing overWhere non-sister chromatids exchange alleles during prophase I of meiosis.

          

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