Chip-based DNA testing wrong more than right for very rare variants

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By Tarikul in Technology
Updated 3 years ago

The type of chips used in some consumer DNA tests struggles to separate rare mutations from experimental noise, and a positive result for a rare cancer-causing gene variant is more likely to be wrong than right. Results for common variants are better, though. Single-nucleotide polymorphism (SNP) chips are a cheaper...

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