@Test(expectedExceptions = IllegalArgumentException.class)
public void ofAmbiguousGenes2() {

	DoubleChromosome.of(
		ISeq.of(
			DoubleGene.of(1, 2),
			DoubleGene.of(3, 4),
			DoubleGene.of(5, 6)
		)
	);
}