Question

which of the following is an example of a tri-nucleotide repeat expansion disease? question 4 options: huntington's disease cystic fibrosis albinism xeroderma pigmentosum more than one response is correct

Answer 1

Huntington's disease is an example of a tri-nucleotide repeat expansion disease, caused by a mutation in the huntingtin gene which leads to production of a toxic protein that damages nerve cells.

Step-by-step explanation:

Huntington's disease is an example of a tri-nucleotide repeat expansion disease. It is a neurological disorder caused by a mutation in the huntingtin gene. This mutation results in an expansion of the CAG trinucleotide repeat in the gene, leading to the production of a toxic protein that damages nerve cells.