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The oxygen-carrying pigment in red blood cells is

Achlorophyll
Bhaemoglobin
Cmyoglobin
Dhaematin
Answer & Solution
Correct answer: B. haemoglobin
Haemoglobin — iron-containing protein in RBCs. Binds O₂ in lungs, releases it in tissues. Myoglobin is the related muscle protein that stores O₂.
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