DNA Testing Resources
Overview
Non-standard samples
Chain of Custody
Results Interpretation
DNA 101
Overview
How is Nuclear DNA Organized?
Why is Autosomal DNA Ideal for Identity and Parentage Testing?
What is the basis for autosomal STR testing?
Steps in DNA Sample Processing
Raw STR Data
Interpreting STR Results in a Paternity Test
Y-STR Analysis
Mitochondrial DNA Analysis
DNA Glossary
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Orchid utilizes a network of over 5000 collection sites worldwide.
Orchid utilizes a network of over 5000 collection sites worldwide.
Accreditations
Orchid Cellmark holds multiple accreditations from various organizations and adheres to the standards of each accrediting organization. Compliance by our laboratories to these accreditation requirements provides assurance to our clients that test results provided by Orchid Cellmark are of the highest quality. Clink on the links above to learn more about our accreditations.
Orchid Cellmark holds multiple accreditations from various organizations and adheres to the standards of each accrediting organization. Compliance by our laboratories to these accreditation requirements provides assurance to our clients that test results provided by Orchid Cellmark are of the highest quality. Clink on the links above to learn more about our accreditations.
DNA Testing Resources
DNA 101
Why is Autosomal DNA Ideal for Identity and Parentage Testing?
Autosomal DNA is the DNA present on 22 of the 23 pairs of chromosomes of an individual. Each individual inherits half of their DNA from their mother and half from their father. Therefore by examining the DNA of a child and his alleged parents, it is possible to confirm if those individuals are his parents.
However while each child of the same parents will inherit 50% of their DNA from each parent, each child will not inherit exactly the same DNA as their sibling. Therefore, two full siblings are only expected to share approximately 50% of their DNA. It is possible to examine their DNA to determine if they are or are not likely to be related. This is called a kinship test.