Huntington's disease is caused by inheritance.
Huntington 's disease -LRB- HD -RRB- , also known as Huntington 's chorea , is an inherited disorder that results in death of brain cells .	inherited disorder	inherited disorder	results in death of brain cells	neurodegenerative disease
Genetic disorders may be hereditary , passed down from the parents ' genes .	hereditary	hereditary
In such cases , the defect will only be passed down if it occurs in the germ line .	germ line	germ line
A genetic disorder is a genetic problem caused by one or more abnormalities in the genome , especially a condition that is present from birth -LRB- congenital -RRB- .	abnormalities in the genome	Chromosome abnormality	congenital	congenital
