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In movies and comics, mutations often give characters superpowers. In reality, this is not possible. Dramatic abilities would require many complex mutations occurring at the same time in all body cells—and in germ cells to be inherited. Such changes are biologically unrealistic (Alberts et al., 2015).

For example, Spider-Man’s abilities would require coordinated changes in muscles, bones, nerves, and metabolism across the entire body—something that cannot happen through normal mutations.