These worksheets generally use the "X-Gene" as a fictional model to explain real-world biological concepts. Below is a summary of the typical concepts and "answers" found in these educational resources: Core Concepts Covered

Wolverine’s healing factor is due to a gene called SURGE . The normal DNA sequence reads TAC GCA TGG AAT . In a non-mutant human, the sequence is TAC GCA TGA AAT . Compare the mutant sequence to the human sequence. What type of mutation is this?

Before we look at the characters, let's nail down the basic types of mutations found on most worksheets: Substitution: