A condition in which the normal adult hemoglobin is partly or completely replaced by abnormal hemoglobin is known as
a. Aplastic anemia
b. Sickle cell anemia
c. Thalassemia major
d. Iron-deficiency anemia
B
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A Aplastic anemia is a lack of cellular elements being produced.
B Sickle cell anemia is one of a group of diseases collectively called
hemoglobinopathies, in which normal adult hemoglobin is replaced by an
abnormal hemoglobin.
C Hemophilia refers to a group of bleeding disorders in which there is deficiency
of one of the factors necessary for coagulation.
D Iron-deficiency anemia affects size and depth of color and does not involve an
abnormal hemoglobin.
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