It is genetic- a person inherits the abnormal hemoglobin from both parents who may be carriers with the sickle cell trait or parents with sickle cell disease.
(both parents; may be; carriers with the sickle cell trait or parents with sickle cell disease) (a person; inherits; the abnormal hemoglobin; from both parents) Context(a person inherits,List([15, 32))):(It; is; genetic)
a person inherits,List([15, 32))
both parents a person It
may be inherits is
carriers with the sickle cell trait or parents with sickle cell disease
the abnormal hemoglobin from both parents
genetic