Texas Genetic Counselor Licensing Exam Practice Questions & Answers PDF 2026–2027

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Texas Genetic Counselor Licensing Exam –
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Practice Questions And Correct Answers (Verifi
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ed Answers) Plus Rationales 2026/2027 Q&A | In
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stant Download Pdf b b




1. Which of the following is the primary role of a genetic counselor?
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A. Perform gene-editing procedures b b


B. Provide nutritional counseling b b


C. Interpret genetic testing results and communicate risks
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D. Prescribe pharmacologic treatments b b


Genetic counselors specialize in interpreting genetic tests and conveying risks, option
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s, and implications to patients.
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2. The Genetic Information Nondiscrimination Act (GINA) protects individuals
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from:
A. All forms of genetic discrimination, including life insurance
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B. Discrimination in education settings b b b


C. Discrimination in health insurance and employment b b b b b


D. Discrimination in auto insurance premiums b b b b


GINA prohibits genetic discrimination in health insurance and employment, but n
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ot in life, disability, or long-term care insurance.
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3. Which of the following inheritance patterns is typical for cystic fibrosis?
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,A. X-linked recessive b


B. Autosomal recessive b


C. Autosomal dominant b


D. Mitochondrial
Cystic fibrosis follows an autosomal recessive inheritance, requiring two pathoge
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nic variants for disease expression.
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4. A patient with a BRCA1 mutation has which of the following increased risks?
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A. Colon cancer b


B. Breast and ovarian cancer b b b


C. Liver cancer b


D. Lung cancer b


BRCA1 mutations are associated primarily with elevated risks of breast and ovari
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an cancers.
b




5. Which ethical principle is emphasized when ensuring patients voluntarily
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consent to genetic testing?
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A. Beneficence
B. Justice
C. Autonomy
D. Non-maleficence
Autonomy ensures that patients make informed decisions without coercion.
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6. In pedigree analysis, a condition seen in every generation is most consistent
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with:
A. Autosomal dominant inheritance b b


B. Autosomal recessive inheritance b b


C. X-linked recessive inheritance b b

, D. Mitochondrial inheritance b


Autosomal dominant traits often appear in every generation.
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7. A heterozygous carrier couple for sickle cell disease has what probability of
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having an affected child?
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A. 0%
B. 25% unaffected, 75% affected
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C. 25% affected, 50% carrier, 25% unaffected
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D. 50% affected, 50% unaffected
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Mendelian ratios in autosomal recessive inheritance: 25% affected, 50% carriers, 25%
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unaffected.
b




8. Which test is most appropriate for diagnosing trisomy 21 in a newborn?
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A. Whole-genome sequencing b


B. Targeted mutation analysis b b


C. Karyotype analysis b


D. PCR
Karyotype analysis is the standard diagnostic method for identifying chromosom
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al aneuploidies such as trisomy 21.
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9. The ACMG guidelines classify variants into how many categories?
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A. Three
B. Four
C. Five (pathogenic, likely pathogenic, VUS, likely benign, benign)
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D. Six
The American College of Medical Genetics and Genomics uses five categories for vari
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ant interpretation.
b