Selective agent for Mycobacteria in LJ medium is :: (A) Methylene blue, (B) Malachite green, (C) Mineral salt solution, (D) Glycerol
Answer is B. LJ medium contains- ? Potassium dihydrogen phosphate anhydrous , Magnesium sulphate anhydrous, Magnesium citrate ? Asparagine and Glycerol ? Malachite green, 2% solution ? Eggs