You perform an experiment in which nuclear material (chromatin) is isolated from what appears to be martian cells. You briefly digest with micrococcal nuclease. When the chromatin proteins are removed and the resulting purified DNA is analyzed by gel elecrophoresis, you observe a series of DNA fragments that are multiples of 410 base pairs in length (i. e., 410 bp, 820 bp, 1230 bp, 1640 bp, and so forth). What can you conclude about the organization of DNA and protein in the Martian sample