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5 Written questions

5 Matching questions

  1. Stutter mutation
  2. Genotype
  3. Translation
  4. ATP
  5. Bivalent
  1. a Pair of synapsed (joined) homologous chromosomes during prophase and metaphase of meiosis I.
  2. b Molecule (nucleotide derivative) found in all living cells and involved in energy transfer. When it is hydrolysed energy is released.
  3. c Stage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.
  4. d 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. e Alleles present within cells of an individual, for a particular trait/characteristic.

5 Multiple choice questions

  1. Structure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.
  2. All the genetic information within an organism/cell.
  3. Observable characteristics of an organism.
  4. The fundamental relationship between DNA, RNA and protein first outlined by Francis Crick in 1958.
  5. Refers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.

5 True/False questions

  1. OperonA stretch of DNA consisting of two or more genes that are transcribed together and coregulated.

          

  2. Genetic codeStructure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.

          

  3. HomozygousEukaryotic cell or organism that has two identical alleles for a specific gene.

          

  4. MonogenicA substance that controls the pattern of tissue development. It is produced in a particular region of a developing organism. It diffuses to other cells, which then enter a specific developmental pathway.

          

  5. MeiosisType 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.