Home
Paternity Testing
Forensic DNA
Government Paternity
Customer Support
Partners
About Us
Forensic DNA Overview Casework Services Overview Screening (Blood, Semen, Saliva Detection) Short Tandem Repeat (STR) Analysis Y-STR Analysis Mitochondrial DNA (mtDNA) Analysis Single Nucleotide Polymorphism (SNP) Analysis Forensic Paternity Analysis Expert Testimony Case Review Casework Services Programs Offender Testing IQAS Forensic Proficiency Testing Program Personal Identification Forensic Lab Locations About Forensic Testing Frequently Asked Questions Evidence Handling Guidelines Evidence Collection And Packaging Evidence Storage Evidence Shipment
Call 1-800-DNA-TEST Give us a Call
1-800-872-5227
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.
Home > Forensic DNA | DNA Forensic Testing | Forensic DNA Tests > Y-STR Analysis
Forensic DNA

Casework Services:

Y-STR Analysis

Y-STR analysis involves the examination of DNA that is present on the Y chromosome of males and is inherited only by males from their fathers. The male-specific nature of this test is advantageous because it ignores any female DNA present in a sample. Y-STR analysis is therefore often used in sexual assault cases.

Orchid Cellmark offers Y-STR analysis on a variety of platforms using a number of different kits (sidebar with Y-STR kit information). Y Chromosome STR testing is recommended in the following instances:

  • Sexual Assault Cases where there may be DNA from multiple males present
  • A case in which the female DNA component is large enough to mask the male DNA component (e.g. fingernail scrapings from a female victim)
  • Sexual Assault Cases when a sample has screened positive for semen, but no spermatozoa are observed

Although Y-STR testing may not be suitable for every case, it is a proven technology that is useful when other testing methods have been unsuccessful or provided inconclusive data. Orchid Cellmark is committed to high quality, accurate and timely testing. A detailed written report will be issued for every case.

Y-STR Kits

Orchid Cellmark has validated the following kits:

  • AmpFLSTR Y-Filer
  • Promega Powerplex Y