Question 1
A newborn has truncus arteriosus, hypocalcemic tetany, recurrent viral infections, and an absent thymic shadow. Failure of migration of which embryologic cell population best explains the cardiovascular abnormality?
Correct Answer:
Neural crest cells
Question 2
A fetus is noted on ultrasound to have persistent soft tissue webbing between the digits. Which cellular process normally removes this tissue during limb development?
Correct Answer:
Caspase-mediated apoptosis
Question 3
A 7-month-old infant has fasting hypoglycemia, lactic acidosis, hyperuricemia, and massive hepatomegaly. A liver biopsy shows excess glycogen with normal structure. Which enzyme is most likely deficient?
Correct Answer:
Glucose-6-phosphatase
Question 4
A 3-year-old boy has developmental delay, self-injurious biting, orange crystals in his diaper, and choreoathetosis. Accumulation of which metabolite is most directly responsible for the crystal finding?
Correct Answer:
Uric acid
Question 5
A sailor develops swollen gums, perifollicular hemorrhages, poor wound healing, and corkscrew hairs after months at sea. Which posttranslational modification is impaired?
Correct Answer:
Hydroxylation of proline and lysine residues
Question 1
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Prepare with the NBME CBSE Practice Questions - NBME Comprehensive Basic Science Examination Exam practice quiz. This question bank includes 100 questions covering patient, develops, shows, normal, and explains. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NBME CBSE Practice Questions - NBME Comprehensive Basic Science Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on patient, develops, shows, normal, and explains. 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.

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