CGG repeat sequence is found in:: (A) Fragile X syndrome, (B) Huntingtons chorea, (C) Dentatorubropallidolusyian atrophy, (D) Machado Joseph disease
Answer is A. Ans: A (Fragile X syndrome) Ref: Robbins and Co! ran 'Pathologic Basis of Disease' 8th Edition.Elsevier. 2011 Page 168.Explanation:Expansions affecting non-coding regionsDiseaseProteinRepeatingSequenceFragile X syndromeFMR-1 proteinCGGFriednch ataxiaFrataxinGAAMyotonic DystophyMyotonic dystrophy protein kinase (MDPK)CTG(See the following table)