EXPLAIN the “rules” that limit how DNA polymerase works EXPLAIN the “rules” that limit how DNA polymerase works. What is the connection between these rules and telomeres on the ends of chromosomes in eukaryotes. Why don’t bacterial cells need telomeres?    

5 POINTS POSSIBLE (NEED 1 from each section) “Rules”: Can’t start a new strand Can only add on to an existing strand Can only add nucleotides to 3’ end of an existing DNA strand CONNECTION: Replication results in a double strand with places on each end that can not be fill in with nucleotides So each time DNA is copied a segment of code is “lost” because it can’t be copied Telomeres are segments of DNA that are added to the ends of eukaryotic chromosomes which contain extra code that can be deleted/lost without losing important coding info PROKARYOTES DNA is circular so DNA polymerase always has a 3’ end to attach a nucleotide to