Huntington's disease

Question

Quizplus · Accepted Answer

Huntington's disease is a genetic disorder that affects the brain and causes changes in personality, mood, and cognitive ability. Depression is a common symptom of the disease. It is caused by a dominant allele, meaning a person only needs to inherit one copy of the gene from one parent to develop the disease. Symptoms usually appear in mid-life, although they can occur earlier or later, and the disease eventually leads to death.  So, option A is not correct as it is caused by a dominant allele, not recessive. Option C is also not correct as the symptoms usually appear in mid-life, not in babies. Finally, option D is also not correct as the disease is fatal.

Huntington's Disease