The pathologic process being illustrated here is:

1. Due to abnormal expansion of CTG-trinucleotide repeats.

2. Transmitted in autosomal recessive fashion.

3. Associated with a gene on chromosome 6.

4. Due to abnormal expansion of CAG-trinucleotide repeats.

A.  1,2, and 3 are true.

B.  1 and 3 are true.

C.  2 and 4 are true.

D.  4 is true.

Answer and Discussion

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