Genetics: Euploidy, Polyploidy, and Aneuploidy
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Questions and Answers

Which of the following best describes euploidy?

  • A condition where an organism has an exact multiple of a complete set of chromosomes (correct)
  • A condition where a cell has one complete set of extra chromosomes
  • A condition where an organism has one complete set of extra chromosomes
  • A condition where a cell has an exact multiple of a complete set of chromosomes
  • What is the term for the condition in which an organism has lost or added one or more chromosomes to the normal set?

  • Euploidy
  • Polyploidy
  • Aneuploidy (correct)
  • Triploid
  • Which chromosomal condition is associated with Down's syndrome?

  • Double trisomy
  • Trisomy (correct)
  • Nullisomic
  • Monosomics
  • The loss of one homologous chromosome is characteristic of which condition?

    <p>Nullisomic</p> Signup and view all the answers

    What type of gene becomes active oncogenes when mutated, leading to uncontrolled cell division?

    <p>Proto-oncogenes</p> Signup and view all the answers

    Which type of gene recognizes uncontrolled cell division and acts to suppress it?

    <p>Tumor-suppressor genes</p> Signup and view all the answers

    What may result from mutations on body cells but cannot be inherited?

    <p>Cell damage</p> Signup and view all the answers

    In the context of mutations in body cells, what do proto-oncogenes often become when mutated?

    <p>'Cancerous' genes</p> Signup and view all the answers

    'Mental retardation' is caused by the deletion of which chromosome number?

    <p>'Chromosome number 5'</p> Signup and view all the answers

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