Answer:
A point mutation is a type of genetic mutation where the single nucleotide base pair is changes.
There can be a single nucleotide base which is changed, deleted or inserted from a sequence of DNA or RNA.
The proteins produced may be faulty proteins. The consequences can be moderately predictable based on the specificity of the mutation.
Example: Cystic fibrosis, Sickle cell anemia and Tay-Sachs are some of the disease caused by point mutation.