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CGC Practice Questions - ABGC Certified Genetic Counselor Exam

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About this Exam

Prepare with the CGC Practice Questions - ABGC Certified Genetic Counselor Exam practice quiz. This question bank includes 100 questions covering genetic, variant, syndrome, testing, and child. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
A couple presents for genetic counseling after their first child was diagnosed with cystic fibrosis. Both parents are confirmed carriers of the CFTR p.Phe508del variant. What is the recurrence risk for each subsequent pregnancy?
25%
50%
67%
75%
Question 2
Which ACMG variant classification category is assigned to a variant with strong evidence of pathogenicity but insufficient to meet criteria for Pathogenic?
Variant of uncertain significance
Likely pathogenic
Likely benign
Benign
Question 3
A woman at 11 weeks gestation undergoes chorionic villus sampling (CVS). The laboratory reports mosaic trisomy 16, raising concern for confined placental mosaicism. What is the most appropriate next step?
Treat the placental result as fetal diagnosis
Offer amniocentesis for fetal assessment
Assume the fetus is unaffected
Recommend termination without confirmation
Question 4
In Hardy-Weinberg equilibrium, if the frequency of a recessive disease allele (q) is 0.01, what is the expected carrier frequency in the population?
0.0001 (0.01%)
About 1.98%
0.01 (1%)
0.9801 (98.01%)
Question 5
A 35-year-old woman with a BRCA1 pathogenic variant asks when annual contrast-enhanced breast MRI generally begins. What is the guideline-based starting age?
Age 18
Age 25
Age 40
Age 50

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Additional Information

CGC Practice Questions - ABGC Certified Genetic Counselor Exam

This practice set contains 100 questions from the matching question bank and focuses on genetic, variant, syndrome, testing, and child. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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