Multiple choice

Nitrogen is a severe chemical in both the protein and DNA. So every living organism should metabolize nitrogen for surviving. Only bacteria and Archaea are capable to convert gaseous nitrogen (N2) to and from soluble ionic compounds which other organisms may metabolize.

At the time of symbiotic biological nitrogen fixation, the understanding of Rhizobia host interaction includes 2 types of molecules. Which are they?

  1. Lectin and polysaccharides

  2. Flavonoids and lipids

  3. Lectins and lipids

  4. Lectins and alkaloids
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A Correct answer
Explanation

These are Lectin and polysaccharides. Lectin has been filtered from seeds of 4 legumes & lectin covalently attach to Agarose. Lipopolysaccharide is isolated from the 4 rhizobial symbionts of legumes. 4 Lipopolysaccharide are passed through 4 lectin columns.

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