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63 bytes added ,  13:08, 28 September 2010
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Iron is found within each haem component of haemoglobin and binds oxygen.
 
Iron is found within each haem component of haemoglobin and binds oxygen.
 
===Folic acid and vitamin B12===
 
===Folic acid and vitamin B12===
These elements are required for DNA synthesis and are important for the formation of new erythrocytes. Deficiencies leads to the formation of '''macrocytes'''.
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These elements are required for DNA synthesis and are important for the formation of new erythrocytes. Deficiencies leads to the formation of '''macrocytes''', which are enlarged erythrocytes with a higher than normal MCV.
    
==Regulation==
 
==Regulation==
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