Figure WN21.3 - The numbers of an array of tandem repeats drifts at random, as a result of the processes described in Fig. 12.18.

Figure WN21.3. The numbers of an array of tandem repeats drifts at random, as a result of the processes described in Fig. 12.18. Eventually, the array must drift to one copy, after which these processes cease. However, it may by chance drift to very high copy number.