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| Q. |
Leukaemia or blood cancer is characterised by abnormal increase of the – |
| A. | Red blood cells |
| B. | White blood cells |
| C. | Blood platelets |
| D. | Blood plasma |
| Answer» B. White blood cells | |
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Explanation: Leukemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Damage to the bone marrow, by way of displacing the normal bone marrow cells with higher numbers of immature white blood cells, results in a lack of blood platelets, which are important in the blood clotting process. This means people with leukemia may easily become bruised, bleed excessively, or develop pinprickbleeds (petechiae). White blood cells, which are involved in fighting pathogens, may be suppressed or dysfunctional. |
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