Multiple choice

Cyanocobalamin is synthesised by utilising

  1. Bacillus alcalophilus

  2. Phytomonas

  3. Streptomyces olivaceus

  4. Xanthomonas
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C Correct answer
Explanation

Streptomyces olivaceus are Gram positive bacteria with high GC content and are characterised by a complex secondary metabolism. They produce over two-thirds of the clinically useful antibiotics of natural origin. Cyanocobalamin is synthesised by utilising Streptomyces olivaceus.

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