public Chromosome<G> chromosome() {
		return get(0);
	}
Return the first chromosome. This is an alias for
{@snippet lang="java":
final Genotype<DoubleGene> gt = null; // @replace substring='null' replacement="..."
final Chromosome<DoubleGene> chromosome = gt.get(0);
}

@since 5.2

@return The first chromosome.
jenetics/src/main/java/io/jenetics/Genotype.java