48.
									
										Which of the following features is not true for Shine –Dalgarno sequences;
									
								
															
														
																									
										A:
											It is a stretch of purine –rich sequences. 
									
																										
										B:
											It is complementary to 16S rRNA .
									
																										
										C:
											It is a ribosomal binding site.
									
																										
										D:
											It is always located down stream to coding region.
									
																								 
							
																
									The answer is:
										D
									
								
														
							
								
								
							
							
							
								