Individuals with Huntington's disease possess an allele that causes severe symptoms by
A) replacing pairs of chromosomes.
B) producing certain abnormal proteins.
C) halting the process of gene expression.
D) regulating the sequences of nucleotides.

Question

Quizplus · Accepted Answer

The allele responsible for Huntington's disease produces an abnormal protein called huntingtin, which accumulates in neurons and leads to their degeneration. This ultimately causes the severe symptoms associated with the disease. The allele does not replace pairs of chromosomes or halt the process of gene expression, and while it does involve changes in nucleotide sequences, this is not the primary cause of the disease.

Individuals with Huntington's Disease Possess an Allele That Causes Severe