The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
Go to the Prenatal Testing page for more details. If one parent has sickle cell trait (HbAS) and the other has sickle cell anaemia (HbSS) there is a one in two(50%) chance that any given child will get sickle cell trait and a one in two chance that any given child will get sickle cell anaemia.
Answer:
Ophthalmoscopy, also called funduscopy.
