Comments:Scientists improve cancer research techniques

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COMING TO THE POINT DIRECTLY about treatment  of  CANCER, as  appears from statements by scientists from oxford university, anti-cancer drugs are  to be tested upon stem cell samples

but possibility arises that  there may be MUTATION in DNA of  the cancer stem cell as it  is always in S phase of  cell reproductionand DNA strand is always  open, so only those Anti  cancer drugs  will be effective  which  funtion  by pathway  not linked  to dna  binding but according  to me  mostly these drugs have DNA   binding  pathway , SO HOW  ARE  THE  SCIENTISTS GOING TO  TACKLE THIS  POSSIBILITY  againgt  cancer  treatment which  is  like  a  moss in the  same garden which we have  to clean away ..