16.
									
										In two Dimensional gel electophoresis, the proteins are initially fractionated in horizontal direction by ______ followed by _______ in vertical direction.
									
								
															
														
																									
										A:
											Isoelectric focusing, SDS-PAGE 
									
																										
										B:
											SDS-PAGE, isoelectric focusing 
									
																										
										C:
											Isoelectric focusing, Native – PAGE 
									
																										
										D:
											Native-PAGE, isoelectric focusing 
									
																								 
							
																
									The answer is:
										A
									
								
														
							
								
								
							
							
							
								