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The Times of India

Others / The Times of India

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Curiosity Corner: Why do we have different blood groups?

Blood groups, determined by inherited genes, act as vital identification markers on red blood cells. These 'badges,' including A, B, AB, O, and Rh factor, are crucial for the body's immune system to distinguish self from foreign blood. Understanding these groups is essential for safe transfusions and medical procedures, highlighting an invisible connection between individuals.

17 Feb 2026 9:00 am