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Discussion :: Biology

  1. Blood is red in colour due to the presence of ________

    2. A.

     Cytochrome
    B.

     Chlorophyll
    C.

     Hemocyanin
    D.

     Haemoglobin

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    Answer : Option D

    Explanation :

    Hemoglobin is iron-containing oxygen transport protein in the red blood cells of all vertebrates. It has an oxygen binding capacity and gives the red colour to the blood.

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