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Molecular variations in one kind of (1) _________ marker on red blood cells are

ID: 219622 • Letter: M

Question

Molecular variations in one kind of (1) _________ marker on red blood cells are analyzed with (2) ______ blood typing. If you are type A, your immune system will treat blood with type (3) ______ markers as foreign. If you are type B, your body will react against type (4) ______ markers. If your blood is type (5) _______, your blood cells possess both markers and won’t react against either type; you are able to (6) _____ blood from anyone. If you are type O, both A and B markers are perceived as (7) _____. You can receive blood from others who are also type (8) ________ and you are considered to be a universal donor. (9) ______ blood typing is based on the presence or absence of the Rh (10) ____. If you are type (11)_______, your body cells bear this marker. If you are type (12) ____, they do not. Usually people do not have (13) __________ against Rh markers, because their body has never been exposed to them. But an Rhrecipient of transfused (14) ____ blood will make antibodies, and they will remain in the blood. a. A h. antibodies b. B i. foreign c. AB j. marker d. ABO k. self e. Rh – l. O f. Rh + m. Rh g. receive

Explanation / Answer

ABO system is the most widely used form of blood classification. The RBC contains certain glycoprotein antigenic substances which are specific. The A blood group treats B blood group as foreign due to the presence of the antigenic substance on the RBC. Likewise in case individual posses A blood group, it treats B blood group as foreign

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