ABC-BIO Practice Questions - ABC Biological Evidence Screening Certification (ABC-BIO) Exam

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An analyst sprays luminol on a cleaned floor and photographs a faint blue-white chemiluminescence. Which statement most accurately describes the limitation of this result?

It confirms human blood at the location It is species-specific to mammals It is a presumptive reaction prone to false positives from bleach, copper, and some plant peroxidases It precludes any further DNA recovery

Correct Answer:

It is a presumptive reaction prone to false positives from bleach, copper, and some plant peroxidases

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