Multiple alignments of tandem repeats CEB252 and CEB233. In each alignment, the upper darker line is a consensus pattern for the basic unit, shown for reference, and the lighter lines are the individual copies, ordered from top to bottom as they occur in the repeat. Only differences with the consensus are shown. Heterozygosity for CEB252 is 0.6. Note several redundant patterns of mutation resulting in a high HistoryR score. Heterozygosity for CEB233 is zero. No clear organization of mutations resulting in a low HistoryR score.