Final answer:
The specific chromosome containing the gene for the DSK protein in humans is not provided in the information given, which focuses on an evolutionary chromosome 18 inversion between the ROCK1 and USP14 genes.
Step-by-step explanation:
You asked about the chromosome that contains the gene coding for the DSK protein in humans. Although the details provided talk about human chromosome 18 and the genes ROCK1 and USP14 linked to human and chimpanzee genetic differences, there is no mention of the DSK protein or its specific gene location. Based on the information provided, we cannot deduce the location of the DSK protein gene in humans. However, it is worth noting that chromosome 18 is known for an inversion separating ROCK1 and USP14, which may have contributed significantly to human evolution.