<p>ANSWER: DNA replication is vital to living organisms; it is how they grow, develop, and repair
damaged tissues. Because the process is critical to life, it likely evolved very early and
remained consistent as higher organisms evolved. Changes to the process of DNA replication
are as likely to be detrimental to the process as they are to be beneficial since mutations are
undirected. Thus, if the mechanism of DNA replication is functional and efficient, there
would be no evolutionary pressure to change it.</p>