20.
									
										The two most common processes that lead to production of multiple functional proteins from the same DNA sequence are : 
									
								
															
														
																									
										A:
											RNA editing and alternative splicing.
									
																										
										B:
											 Protein folding and post-translational covalent modifications.
									
																										
										C:
											 Alternative splicing and post-translational covalent modifications. 
									
																										
										D:
											Post-translational covalent modification and transcriptional regulation. 
									
																								 
							
																
									The answer is:
										A
									
								
														
							
								
								
							
							
							
								