Y-STR Analysis

What is Y-STR Analysis?

Y-STR Analysis uses the same scientific foundation as STR Analysis, but the DNA fragments that are being targeted in this type of testing are only found on the Y-chromosome, making this analysis specific to only males.

This type of DNA testing can be invaluable in cases where male DNA is present on evidence but cannot be detected using traditional STR testing methods.

A Y-STR profile may provide the evidentiary lead needed to supplement an investigation. Although this technology can be a powerful tool, please keep in mind the power of discrimination between related persons is greatly reduced since it is likely that male relatives will share the same Y-STR profile.

Sample Types Amenable for Testing:

  • Sexual-assault evidence
  • Fingernail clipping
  • Ligatures
y-str dna analysis

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