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26 THE STUFF OF LIFE
ess of both.

    tion is a fine one. too many errors andt function, but too fe sacrifices adaptability. A similar balance mustexist betability in an organism and innovation. An increase in red blood cells can  ions to move and breat additional red cells also too many,and “it’s like pumping oil,” in temple University ant Cz.

    t’s . to live at itude get increased breat pay for it s. By sucuralselection look after us. It also o explain  let you become too different—not  becoming a new species anyway.

    t difference beted for by our Snips.

    Nocorrespondence, but t part, be in different places. Add morepeople to t yet more Snips in yet more places. For every one ofyour 3.2 billion bases, some coding in t position. So not only is it o refer to “t in a sense  even  t equally, in t David Cox, “you could sayall  , too.”

    But o explain  DNA  startsto get a little unnerving, but it does really seem t to perpetuate DNA.

    t of our DNA commonly called junk is largely made up of clumps of letterst, in Ridley’s  for t t gettingted.”

    2Most of your DNA, in ot devoted to you but toitself: you are a mac, not it for you. Life, you  s tobe, and DNA is  so.

    Even ions for making genes—ists put it—it is not necessarily ioning of the organism in mind.

    One of t genes ranscriptase, does do is make itpossible for retroviruses, suco slip unnoticed into tem.

    In ote considerable energies to producing a protein t doesnot is beneficial and sometimes
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