22.
									
										Methotrexate is known to inhibit cancer cell growth due to which of the following;
									
								
															
														
																									
										A:
											Competitively inhibits DNA Ligase enzyme 
									
																										
										B:
											Competitively inhibits DNA Polymerase 
									
																										
										C:
											Competitively inhibits Dihydrofolate reductase enzyme 
									
																										
										D:
											Competitively inhibits peptidyl transferase enzyme
									
																								 
							
																
									The answer is:
										C
									
								
														
							
								
								
							
							
							
								