X-STR Paternity Test (X-Chromosome Test / X-STR)
X-STR paternity test examines the STR genes on the X chromosome to prove a woman’s paternal blood relationship.
- Test Principles
X-STR paternity test examines the STR genes on the X chromosome to prove a woman’s paternal blood relationship.
Sisters that share the same father have inherited the same X chromosome from the father. So a paternal blood relationship can be verified by checking the matching genes through STR gene analysis of the X chromosome.
DowGene DNA Testing Company, an international KOLAS certified testing institution, introduced the test quality management system to accurately control the entire testing process.
- Test specimen
Blood, hair with hair root, oral epithelium, saliva, bloodstain, toothbrush, fingernail, chewing gum, cigarette butt, etc.
- Test Procedures
- Test Results
DowGene DNA Testing Company investigates and analyzes the X-STR genotype existing in the X chromosome to prove the paternity or patrilineal relation of a female such as half-sister, grandmother, or granddaughter.
- Application of X-STR Paternity Test
- When proof of a paternal blood relationship of women, such as grandmother, granddaughter, and half-sisters, is required in the case of absence of the biological father
- When proof of a paternal blood relationship is required to correct the family registry
- When proof of a paternal blood relationship is required to obtain nationality
- When proof of a paternal blood relationship between half-sisters or grandmother and granddaughter needs to be submitted to a public agency, etc.
- Genetic test chart
Stepsister / Proof of paternal blood relationship between grandmother and granddaughter
