Practise CBGC Certification Examination with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.

Exam outline and official sources

Canadian Board of Genetic Counselling (CBGC) · Verified against the currently linked CBGC Exam Content Outline: content updated June 2018, version 2; document name updated December 2025. Reviewed 2026-10-13. The assigned workbook label combines distinct credentials: this entry maps to the Canadian examination leading to Canadian Certified Genetic Counsellor (CCGC), while ABGC awards Certified Genetic Counselor (CGC®) through a separate examination. The assigned slug is preserved. No numerical unit weights are published in the consulted Canadian outline.

This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.

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CBGC Certification Examination

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A small group establishes an isolated community. One recessive disease-associated allele is unusually frequent among the founders and remains more common in their descendants than in the original population. There is no evidence of a survival advantage. Which mechanism best explains the initial difference?

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