Why has the dominant mutant allele for Huntington's disease been able to persist in human populations despite its devastating effects?

Question

Quizplus · Accepted Answer

The symptoms of Huntington's disease usually develop in adulthood, often after individuals have had the opportunity to reproduce. This means the allele can be passed on to the next generation before the deleterious effects impact the individual's fitness, allowing the allele to persist in the population.

Why Has the Dominant Mutant Allele for Huntington's Disease Been