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Benign Variant Classification Quiz
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Benign Variant Classification Quiz

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Questions and Answers

What is one way to determine if a variant is considered to be benign?

  • If the allele frequency in a control population is greater than expected
  • If the variant is absent from a large population database
  • If the variant is observed in a healthy adult individual (correct)
  • If the variant is observed in a healthy child
  • When determining if a variant is benign, what is considered to be important?

  • The allele frequency in a control population
  • The size of the population database (correct)
  • The age of the individual
  • The race of the individual
  • What is NOT a factor when determining if a variant is benign?

  • The allele frequency in a control population
  • The size of the population database
  • The age of the individual
  • Whether the variant is observed in a healthy adult (correct)
  • Study Notes

    • A variant is considered to be benign if the allele frequency in a control population is greater than expected.
    • If a variant is absent from (or at extremely low frequency in) a large (and adequately race-matched) population database, then the variant is considered to be benign.
    • For a condition that is fully penetrant at an early age, if the variant is observed in a healthy adult individual, then the variant is considered to be benign.

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    Description

    Test your knowledge on the criteria for classifying genetic variants as benign based on population allele frequency and penetrance in healthy individuals.

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