D n a replication overall has very high accuracy, but it is not perfect. What is the biological and evolutionary importance of this imperfection?.

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04-11-2022
Biology

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D n a replication overall has very high accuracy, but it is not perfect. What is the biological and evolutionary importance of this imperfection?.

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qwbeige qwbeige · Answer 1 · 2022-11-09T05:00:13-05:00

The biological and evolutionary importance of imperfection of DNA replication is that it allows genetic variations to occur.

Despite the fact that DNA replication is highly controlled and astonishingly exact, mistakes can still happen and lead to mutations, which are another source of genetic variety. Gene mutations can also result from environmental sources, and inheritable mutations are those that are viable. DNA replication thus has an imperfection of allowing genetic variations.

Each of the two old DNA strands acts as a template for the construction of an entire new strand during DNA replication inside a cell. DNA polymerase is believed to duplicate the DNA double helix "semiconservatively." This is necessary for cell division during tissue growth and repair, and it also ensures that each new cell gets a copy of the DNA.

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