They suggest that a suspect should be sampled from the same kind of tissue, whether hair or blood, say, as the tissue taken in evidence.
Our study was conducted on Mediterranean soils sampled from the same site during winter, spring and summer.
The river barrier effect is assessed by comparing genetic measures computed from model outputs to those calculated from 166 raccoons recently sampled from the same landscape.
Four studies from Australia were included [35, 55 57], two of which sampled from the same fields under the same crops [35, 56].
Unrelated control subjects with no family history of ALS were sampled from the same populations.
Our results are based on ideal conditions where cases and controls are, by definition, sampled from the same population.
Each tube contained two specimens, which were sampled from the same area, with no more than 2 cm distance in between them.
Sequences sampled from the same patients were removed to a final reference dataset of 36 and 46 sequences for CRF02_AG and A3, respectively.
These random effects were considered important because they allowed for the non-independence of individuals sampled from the same pack or trapping region.
The elements in NRM are twice the expected probabilities that two alleles randomly sampled from the same locus in two individuals are identical by descent (IBD).
No within-placenta variability was observed as different sites sampled from the same placenta always displayed concordant methylation levels (Figure S2).
