NBME CBSE Practice Questions - NBME Comprehensive Basic Science Examination Exam

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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?

Neural crest cells Paraxial mesoderm Endoderm of the third pharyngeal pouch Intermediate mesoderm

Correct Answer:

Neural crest cells

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