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What is Gene Mutation?

By Indra bhan

March 9, 2024

Any change in the structure, configuration, or number of genes is called gene mutation. A gene mutation can be of two types.

Such a change in the structure of a gene, due to which its entire gene structure changes is called a frameshift mutation.

1. Frameshift

It is of the following three types. 1. Deletion  2. Addition 3. Substitution

In this, the change in gene structure is due to the decrease in nucleotides.

Deletion –

In this, the change in gene structure is due to the increase in the number of nuclease tides.

Addition –

In this, the number of genes remains unaffected rather the nucleotide is exchanged between them.

Substitution –

It is of the following two types. 1. Transition 2. Transversion

In this, the exchange takes place between similar nuclei.

Transition –

For example, purine is exchanged with purine and pyrimidine with a pyrimidine.