?? DNA ???? ????????? ??? ??? ????? ????? ????????? ??? ???????????? ?? organism. ???? ??? ?? th? ???????? ?? ???????? ???? ???? ???????????????????? , ??????????, ??? ??????????? ????????????????????????? ??????????????????????? ???? ???????????? ?? ???????? ???? DNA ???????? ????? ?????? ???? ?????? ??? ??????????? ???????. ?????? ??????????