Which of the Following Statements Is True Regarding Hemoglobinopathies but False

question 24

Multiple Choice

Which of the following statements is true regarding hemoglobinopathies but false in thalassemia?

• A) Abnormal hemoglobin polymerizes inside erythrocytes, altering red cell shape.
• B) Novel hemoglobins composed of abnormal combinations of normal globin chains can be detected on hemoglobin electrophoresis.
• C) Elevations in embryonic and fetal hemoglobins can be observed.
• D) The amino acid sequence of the globin chains of the abnormal hemoglobins is normal.

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Definitions:

Optic Nerve

A cranial nerve that transmits visual information from the retina to the brain, playing a crucial role in the sense of sight.

Color Blindness

A condition where a person is unable to distinguish between certain colors, typically red and green, due to a lack of cone cells in the eye.

Red-Green Color Blindness

A common form of color vision deficiency where individuals have difficulty distinguishing between red and green hues.

Dark Adaptation

A process by which visual receptors become maximally sensitive to dim light.