An 11-month-old boy presented with repeated convulsions, poor eye contact, exaggerated startle response to noise
belongs to book: MCQs in Pediatrics Review of Nelson Textbook of Pediatrics|Zuhair M Almusawi, Hasanein Ghali|20th edition| Chapter number:11| Question number:11.22
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(D). Tay-Sachs disease results from the deficiency of B-hexosaminidase activity. Clinical manifestations in infancy including loss of motor skills, increased startle reaction, and macular pallor and retinal cherry-red spots.
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