Method used for acid fast staining -
Ans. is 'b' i.e., Ziehl Neelsen Acid fast stainingo After staining with aniline dye, acid fast organisms resist decolourisation with acids,o Method most commonly used is modified Ziehl Neelsen.Smear stained by carbolfuschin|Decolourization by 20% sulphuric acid|Counterstaining by methylene blueAcid fast organismsNon acid fast organismsRetain fiischin (red colour)Take colour of methylene blue (blue colour)Acid fastness depends uponMycolic acid Integrity of cell wall
Robertson's method
Ziehl Neelsen
Silver imprignation method
Dark ground illumination
Culture media and method