Since sex chromosome markers are especially efficient for solving deficiency cases, an increasing usage can be expected. A specific demand for kinship tests in which only remote relatives are available for testing can be expected to arise, particularly from the need to rejoin families in the context of war and worldwide migration. Here, ChrX marker testing may also prove helpful. Furthermore, the proportion of non-marital children is constantly increasing in modern industrial societies and, for example, accounts for approximately 50% of all births in the eastern federal states of Germany. In many of these instances, paternity may be disputed at some stage and, when the putative father dies early or unexpectedly, the need for a paternity test may only be recognized after the interment.
The present chapter was intended to highlight the potential of ChrX STRs for solving some of the above problems.
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