inherited disease

needed, necessary

need, necessity

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

altitude sickness

special

(intransitive) to be genetically inherited / (intransitive) to be passed down / (transitive) to pass down

genetic; genetics