22.
									
										Tick mark the INCORRECT statement regarding sterilization techniques employed in plant tissue culture:
									
								
															
														
																									
										A:
											 In Laminar Flow cabinet, air is passed through HEPA filter which removes all airborne contamination 
									
																										
										B:
											Autoclave is a type of dry heat sterilization method used to remove microorganisms
									
																										
										C:
											 Autoclaving is generally done at 15 Psi pressure, 121oC temperature for 15-20 minutes 
									
																										
										D:
											Centrifugation is a process where a mixture is separated through spinning and operates on the basis of sedimentation
									
																								 
							
																
									The answer is:
										B