Question

Change in basic sequence of gene is known as

(a) mutation 

(b) transversion

(c) conjugation  

(d) reproduction

Answer 1

(a) mutation 

Mutation means a change in the DNA base pairs sequenced.

It is done due to various environmental factors like UV light or if any mistakes are encountered during DNA replication.

A DNA sequence is unique in each organism.

Sometimes it needs to undergo changes in its base pairs sequenced.

Answer 2

(a) mutation 

A gene variant is a permanent change in the DNA sequence that makes up a gene. This type of genetic change used to be known as a gene mutation, but because changes in DNA do not always cause disease, it is thought that gene variant is a more accurate term.