Our website does not fully support your browser.

We've detected that you are using an older version of Internet Explorer. Your commerce experience may be limited. Please update your browser to Internet Explorer 11 or above.

Promega's Cookie Policy

We use cookies and similar technologies to make our website work, run analytics, improve our website, and show you personalized content and advertising. Some of these cookies are essential for our website to work. For others, we won’t set them unless you accept them. To find out more about cookies and how to manage cookies, read our Cookie Policy.

Mixed Sample Analysis

GenePrint® 24 provides a convenient STR-based method for detecting cell and tissue mixtures and confirming cell origin and identity. Applications include twin zygosity testing, tissue and cell provenance testing, floater analysis and examining genetic changes during cancer development and progression.

The GenePrint® 24 System allows co-amplification and five-color detection of 24 loci (D3S1358, D1S1656, D2S441, D10S1248, D13S317, D16S539, D18S51, D2S1338, CSF1PO, TH01, vWA, D21S11, D7S820, D5S818, TPOX, D8S1179, D12S391, D19S433, D22S1045, and FGA plus Penta E, Penta D, DYS391) and Amelogenin.

Filter By


Product Type

Shop all Mixed Sample Analysis Products

Showing 3 of 3 Products

Mixed Sample Analysis Basics

Short tandem repeat (STR) analysis is a fast and easy way to confirm sample identity. STRs are repetitive 3–7 base pair sequences scattered throughout the human genome. Comparing the STR profile of a tissue with that of a reference sample can determine the sample’s identity.

STR analysis can be used to confirm the identity of tissue samples and to detect sample contamination, which appears as a mixed STR profile. The sensitivity of STR analysis, which can create full profiles from less than 100pg of DNA, detects up to 1% of contaminating cells or tissue.