World first as scientists use two new DNA letters to create new “alien” life form

World first as scientists use two new DNA letters to create new “alien” life form

WHY THIS MATTERS IN BRIEF Life’s DNA has always been coded using just four letters, but now researchers have added two new letters and it opens the door to a whole new world of alien lifeforms never seen before.   Ever since life gained a foothold on this fragile rock...

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