Biology
The Vitamin required for the synthesis of nucleic acid is

Tocoferorl
Cyanocobalamine
Folic acid
Riboflavin

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Biology
Which one of the following statements regarding haemoglobin is correct?

Haemoglobin present in RBC can carry only oxygen but not carbon dioxide
Haemoglobin of RBC can carry only carbon dioxide
Haemoglobin of RBC can carry both oxygen and carbon dioxide
Haemoglobin is only used for blood clotting and not for carrying gases

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