BY Team Aakash Byju's

What Are Different Types of Mutations and Their Causes?

Mutation is a change in DNA sequence. It results from mistakes made when copying DNA during cell division, exposure to UV rays, and some chemicals.

Mutation

Types of Mutations

Germline mutations, somatic mutations, chromosomal alterations, point mutations, frameshift mutation, etc.

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Substitution mutation is a mutation where a different base pair displace one base pair.

Substitution Mutation

Change in nucleotide to one that encodes a distinct amino acid and generates a slight change in the protein produced.

Three Things That Substitution Mutation Cause

Changing a nucleotide to one that encrypts the same amino acid gives rise to no change in the protein produced.

Change an amino acid coding codon and generate incomplete protein.

Substitution mutations lead to new variants of proteins that help organisms adjust to changes in their environment.

Advantages of Substitution Mutation

Favorable mutations are necessary for evolution to happen.

Sometimes harmful mutations may occur. These may cause genetic disorders, for example, human cystic fibrosis.

Disadvantages of Substitution Mutation