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5 Written questions

5 Matching questions

  1. Genotype
  2. Polypeptide
  3. Polarity
  4. Translation
  5. Paternal chromosome
  1. a Refers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.
  2. b Large polymer molecule made of many amino acids joined by peptide bonds.
  3. c Member of a pair of homologous chromosomes that originally came from the male gamete.
  4. d Alleles present within cells of an individual, for a particular trait/characteristic.
  5. e Stage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.

5 Multiple choice questions

  1. Characteristic in which the allele responsible is only expressed in the phenotype if there is no dominant allele present.
  2. A change in DNA sequence that introduces a premature stop codon within a DNA coding sequence.
  3. Structural change to genetic material - either to a gene or to a chromosome.
  4. Eukaryotic cell or organism that has two different alleles for a specific gene.
  5. Characteristic in which the allele responsible is expressed in the phenotype even in those with heterozygous genotypes.

5 True/False questions

  1. Initiator codonThe way in which the 64 possible base triplets map onto the 20 amino acids that are used in polypeptide chains.


  2. PolyploidLarge polymer molecule made of many amino acids joined by peptide bonds.


  3. Stop codonA stretch of DNA consisting of two or more genes that are transcribed together and coregulated.


  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. 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.


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