<span>The most important role of this peculiar double helix structure of DNA is to facilitate replication....in preparation of cell division each of the 2 strands acts as a template thus facilitating precise copying of genes....in the Nature(1953), </span>
Stratosphere is the correct answer
I am confident that the answer should be.....<span>A protein acts as a pump and moves calcium ions from an area of low concentration to an area of high concentration.
Hope this helps.
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Endosymbiosis
that is my explanation hopefully its right
