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5 Written questions

5 Matching questions

  1. Heterozygous
  2. Programmed cell death
  3. Sexual reproduction
  4. Segmentation genes
  5. Haploid
  1. a Genes that control the development of polarity within a body segment during development.
  2. b Eukaryotic cell or organism having only one set of chromosomes. Denoted by n.
  3. c Alternative term for apoptosis.
  4. d Eukaryotic cell or organism that has two different alleles for a specific gene.
  5. e Production of new organisms involving fusion of nuclei from male and female gametes, usually from unrelated individuals. Increases genetic variation in the population.

5 Multiple choice questions

  1. The DNA strand that is used for assembly of mRNA by RNA polymerase using base-pairing rules. Complementary to the message sequence.
  2. A reference to the fact that normal body cells can only divide a finite number of times, normally about 50 mitotic divisions. In contrast, tumour cells are essentially immortal.
  3. A 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.
  4. Characteristic in which the allele responsible is expressed in the phenotype even in those with heterozygous genotypes.
  5. All the genetic information within an organism/cell.

5 True/False questions

  1. Paternal chromosomeMember of a pair of homologous chromosomes that originally came from the male gamete.


  2. CodominantA characteristic where both alleles contribute to the phenotype.


  3. Stutter mutationA mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.


  4. CodonA sequence of three bases that codes for a single amino acid according to the genetic code.


  5. HomozygousEukaryotic cell or organism that has two different alleles for a specific gene.