Sickle cell disease is characterized by the presence of Hb S.A nurse is trying to differentiate between Hb S and normal Hb.Which of the following amino acids is present in Hb S and not present in normal Hb?
A) Valine
B) Glutamic acid
C) Proline
D) Histidine

Question

Quizplus · Accepted Answer

Hb S is formed by a genetic mutation in which one amino acid (valine)replaces another (glutamic acid).
Valine has replaced glutamic acid.
Hb S is formed by a genetic mutation in the amino acid (valine),not proline.
Hb S is formed by a genetic mutation in the amino acid (valine),not histidine.

Sickle Cell Disease Is Characterized by the Presence of Hb