Human-Contributor Mixture
Definition
Genetic findings containing contributions from more than one human, distinct from merely containing nonhuman DNA. A human mixture involves more than one human contributor under the method’s interpretation. An extract can contain human and insect DNA without being a mixture of human donors.
- Context
- DNA interpretation
For example, evidence for two human genetic contributors is a different proposition from finding one human’s DNA in an extract that also contains insect DNA.
Assay targets and controls determine which signals are relevant. An unexpected peak cannot be assigned to insect DNA merely by appearance.
Related terms
- Blood Meal
- Blood ingested by a feeding arthropod, potentially containing host material. Digestion, elapsed time and handling influence what is recoverable. A donor association...
- COI Barcoding
- Comparison of a defined mitochondrial COI region with suitable references for taxonomic identification. COI is widely used for animals, while appropriate markers...
- Gut Content Extraction
- Recovery of material from the digestive tract under a documented method with contamination controls. A positive result does not automatically establish feeding...
- Haematophagous Insect
- An insect that feeds on blood; its meal does not by itself establish the donor’s location or time of contact. Blood-feeding arthropods...
- Human-Target Assay
- An assay designed and assessed to examine specified human genetic targets. It may be used on material recovered from insects under a...
- Mitochondrial DNA (mtDNA) Haplotype
- A combination of linked mitochondrial variants that may be shared by maternal relatives and other individuals. A haplotype describes variants inherited together....
- Mitochondrial Haplotype
- A sequence pattern requiring lineage-aware comparison and relevant population interpretation. A haplotype describes variants inherited together. Mitochondrial haplotypes reflect maternal inheritance and...
- Mixed-Source Profile
- A profile involving multiple contributors or targets; insect and human DNA in one extract is not automatically a mixture of human contributors....