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The pigment that gives erythrocytes their red colour is

ABilirubin from the liver bile
BHaemoglobin containing iron groups
CCarotene from the diet of plants
DMyoglobin found in muscle cells
Answer & Solution
Correct answer: B. Haemoglobin containing iron groups
Haemoglobin is the iron-containing complex protein in RBCs that binds oxygen. A healthy individual has 12-16 g of haemoglobin per 100 mL of blood.
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