Given an original knot , the knots produced by mutations
 together with 
 itself are called mutant knots. Mutant knots are often difficult to distinguish.
 For instance, mutants have the same HOMFLY polynomials
 and hyperbolic knot volume. Many but not all mutants
 also have the same knot genus.
Mutant Knot
See also
Knot, MutationExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Mutant Knot." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/MutantKnot.html