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Answer: cells are incredibly accurate when they are copying DNA, but there are going to be some errors.

Most of these errors can often times break the organism in some way or might not at all.

But every now and then, some of these errors either as an individual base pair or maybe cumulatively can produce a different phenotype and potentially a phenotype that has an advantage.

This is mutation.

A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

what are the different types of mutation?

There are three types of DNA Mutations:

  1. base substitutions
  2. deletions
  3. insertions.

Base substitutions : Point mutations are single nucleotide substitutions; consider the point mutation Glu ——-> Val is the culprit of sickle cell anaemia.

Deletions : A deletion happens when one or more base pairs are deleted from the DNA, which causes a frameshift.

Insertions: Depending on whether multiples of three base pairs are entered, the addition of additional base pairs may cause frameshifts.

Continuation of this answer can be found in the below link

https://brainly.com/question/17031191

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