You have performed electrophoresis on a sample of normal hemoglobin (HbA), sickle- cell hemoglobin (HbS), a mixture containing HbA + HbS, and a sample of hemoglobin from a patient. The patient sample shows 2 bands, one at the same distance as the HbA band and one at the same distance as the HbS band. What is true about your patient?
A)The answer cannot be determined from the data.
B)The patient has sickle- cell trait.
C)The patient has normal hemoglobin.
D)The patient has sickle- cell anemia.

Question

Quizplus · Accepted Answer

The presence of two bands in the patient's sample, one corresponding to normal hemoglobin (HbA) and the other to sickle-cell hemoglobin (HbS), indicates that the patient has both types of hemoglobin. This is characteristic of sickle-cell trait, where individuals inherit one normal allele and one sickle-cell allele.

You Have Performed Electrophoresis on a Sample of Normal Hemoglobin