linkage marker

link·age mark·'er

a locus at which there is a high probability of heterozygotes (indispensible state for linkage analysis), but in itself perhaps of no clinical interest.
See also: marker locus.

link·age mark·er

(lingk'ăj mahr'kĕr)
A locus at which there is a high probability of heterozygotes (indispensible state for linkage analysis), but in itself perhaps of no clinical interest.
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References in periodicals archive ?
The primary focus of the Needs Assessment will be Living with HIV/AIDS ("PLWHA") who have no evidence of a second care marker of retention in care greater than 90 days from the first linkage marker.
Four other QTL (qBLSB-2c, qBLSB-6a, qBLSB-6b, and qBLSB10) with genetic distances away from the closest linkage markers of 0.