Question

a normal allele for a gene has more base pairs than the mutated form of the allele. Which type of mutation occurred.

Answer 1

The type of mutation you are describing, where the normal allele has more base pairs than the mutated form, is likely a **deletion mutation**. In a deletion mutation, one or more base pairs are removed from the DNA sequence, resulting in a shorter allele compared to the normal version. This can affect the gene's function, potentially leading to various phenotypic effects depending on the role of the affected gene.