If a person inherits two recessive genes, one from each parent, then that person will show the action of those genes, which may simply be a physical trait, such as blue eyes, or may be a disease, such as Tay-Sachs disease.
(a person; inherits; two recessive genes) (that person; may simply be; a physical trait, such as blue eyes)
a person that person
inherits may simply be
two recessive genes
a physical trait, such as blue eyes