Originally posted by Scobie
					
						
						
							
							
							
							
								
								
								
								
								
									View Post
								
							
						
					
				
				
			
		Because mutations occur randomly, going back much further will give DNA that is different from what the descendents have today-so you can't go back forever.
Theoretically we would all have common ancestors if you went back far enough. But, we wouldn't exactly match our ancient ancestors--because mutations are introduced in the genome over the generations.


 
							
						 
		
	 
 
Comment