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Vitamin B12 deficiency causes pernicious anemia, Animals cannot synthesize vitamin B12. Humans must obtain all their vitamin B12 from their diet. The complexing metal ion in vitamin B12 is:
Mg2+ (Magnesium ion)
Fe2+ (Iron ion)
Co3+(Cobalt ion)
Zn2+(Zine ion)
Cobalt is the active centre of coenzymes called cobalamins, the most common example of which is vitamin B12.
By: Ketan Garg ProfileResourcesReport error
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