Table 1.

Uneven Background Features

CWRS-10 VDA design
Forward Average intensity Standard deviation Reverse Average intensity Standard deviation
A1510.5164.6T2220.5142.6
C1209.099.1G1115.065.8
G1263.094.9C1105.3107.5
T1724.896.4A2360.5148
CWRS-50 VDA design
Forward Average intensity Standard deviation Reverse Average intensity Standard deviation
A2575.0225.9T4889.5345.3
C1548.0176.2G3412.0509.5
G2856.0225.0C7411.5370.6
T4278.5460.9A5680.0389.2

[i] Exemplar data from two different sites. CWRS-10 is from an X-linked region (FMR1) and the sample is male. Hence, the sample is haploid and cannot be a heterozygote. Nevertheless, it appears to be an A-T heterozygote. CWRS-50 is from an autosomal region (RET) and this particular sample is known to be a G-T heterozygote from previous genotyping (Carrasquillo, in prep.). By the criteria described in sections 1–3 (even background), the CWRS-10 site would be called a heterozygote, and the CWRS-50 site would be called N.