Chatterjee, CGuha, DDas, SSingh, S KDasgupta, USaha, SBannerjee, D2001-10-312009-05-292001-10-312009-05-292001-10-31Chatterjee C, Guha D, Das S, Singh SK, Dasgupta U, Saha S, Bannerjee D. Fragile X syndrome a case report of a family. Indian Journal of Pathology & Microbiology. 2001 Oct; 44(4): 499-502http://imsear.searo.who.int/handle/123456789/73628Fragile X syndrome is the most common of the inherited disorders causing mental retardation. This disorder results from an abnormal expansion in (CGG)n in repeat found in the coding sequence of the FMRI gene, located at Xq 27.3. Previously it was detected by Karyotyping. With the advent of Molecular Biology PCR, has become the best method in the diagnosis of this disorder. This is a case report of a family with this disorder detected by PCR.engAdolescentAdultChildDNA --analysisFamily HealthFemaleFragile X Mental Retardation ProteinFragile X Syndrome --diagnosisHumansMaleMental Retardation --diagnosisMiddle AgedNerve Tissue Proteins --geneticsPolymerase Chain ReactionRNA-Binding ProteinsSex Chromosome AberrationsTrinucleotide Repeat Expansion --geneticsX Chromosome --geneticsCase Reports