Surprisingly, minor mutations reduce fitness just as much as those with larger effects, because they rise to higher frequency in a mutation selection balance.

Genetic invariance has been elevated to the highest religious principle, and humans with even minor mutations are considered "Blasphemies" and the handiwork of the Devil.

So can microwave radiation cause minor mutations in plants and/or animals?

From these plants several minor mutations occurred.

A minor mutation to protect inhabitants against the cold?

The defects may be the result of several minor genetic mutations rather than the single mutation that produces seizures in the rare, highly heritable forms of epilepsy.

A minor mutation should be deemed an eccentricity and nothing more.

The other is the Y chromosome, that is present only in males and passed down with only minor mutations through the paternal line.

You do know that there's a belief among the Clans that your kind and mine are the same species, separated by minor mutations?

By assuring that the initial minor mutation is not passed on to future generations of cells, the molecule prevents one small error from being magnified into mayhem.