DNA is a negatively-charged molecule. Also cell membranes are negatively charged. The problem would be how to push this charges together? I<span>f you put some CaCl2 into the mixture, the CaCl2 will "split" giving 2Cl- and Ca2+. This last ion will be attracted by the negatively charged DNA and will "cover" it, hiding its negative charge. Hope this answers the question.</span>
Answer:Evolution is a process that results in changes in the genetic material of a population over time. So its true!
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This is correct!
It is most affected in the surface zone.
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The advantage of this is that there is a larger surface area exposed, more time available and shorter difference for exchange of oxygen.
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