A sugar, a phosphate group, and a nitrogen base
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explain please????!??????!
<span>Coevolution is a process whereby two species, through their interactions with one another, can influence the evolutionary paths of one another. For instance, what may start as a symbiotic relationship between two species may lead those species to specialize in terms of their strengths such that they evolve characteristics that make them more or less reliant on one another as a result, something that would not have occurred otherwise.</span>
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In general, negative selection eliminates from the population very harmful changes to proteins that kill or stop reproduction. ... The authors also found a correlation between genes predicted to be under negative selection and genes implicated in certain hereditary diseases
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