Question

What is point mutation ? Give one example..​

Answer 1

Answer:

Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene ...

Explanation:

For example, sickle-cell disease is caused by a single point mutation (a missense mutation) in the beta-hemoglobin gene that converts a GAG codon into GUG, which encodes the amino acid valine rather than glutamic acid.

Answer 2

point mutation is a type of mutation in which only a certain part of gene or nucleotide chain is mutated as seen in sickle cell anemia GAG (glutamic acid ) to GUG (valine ) only a single nucleotide is changed.