If the two versions are different, you have a heterozygous genotype for that ... A mutation in this gene causes Huntington’s disease, a neurodegenerative disorder. Since the mutated gene is ...

What can Gregor Mendel’s pea plants tell us about human disease ... who is most often a carrier (heterozygous) but who might be affected (homozygous). Males, on the other hand, have only ...

The study indicates that a possible treatment for Huntington's disease would be to encourage the brain to replace lost cells with new, functional ones and restore the brain's communication pathways.