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Pathology

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Genetics

Question
5 out of 7
 

Anticipation is seen in - (AIIMS Nov 2013)



A Translocation

B Chromosome breaking

C Trinucleotide-repeat expansion

D Mitochondrial mutation

Ans. C i.e., Trinucleotide-repeat expansion [Ref Robbins 8th/e p. 170]

Observed at an earlier age; this phenomenon is referred to as anticipation.