Final answer:
The number of base pairs inserted or deleted in a DNA region depends on the specific mutation.
Step-by-step explanation:
In order to determine the number of base pairs that would be inserted or deleted in a DNA region, we would need more specific information about the context or cause of the mutation. Depending on the type of mutation, it could involve the insertion or deletion of a single base pair or multiple base pairs, which would result in different effects.
For example, a point mutation caused by the deletion of two nucleotides in a gene's sequence would result in a frameshift mutation. This means that the reading frame of the mRNA would be shifted, leading to a different set of codons being read. The resulting protein would be completely altered.