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Top News In திட்பநுட்பம் இணைக்கப்பட்டது Today - Breaking & Trending Today

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


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 way to map genomes than full genetic sequencing. Using grids of hundreds of thousands of beads that react to specific gene variants by glowing in different colours, these chips can map whichever parts of the whole genome their designers choose. They are accurate for common gene variants of the type that can trace ancestry or that are tied to the risk of type 2 diabetes, but with rarer gene variants, it becomes far harder to separate data from noise. ....

United Kingdom , Caroline Wright , Matthew Sparkes , University Of Exeter , United Kingdom Biobank , Personal Genome Project United Kingdom , Genetic Testing , ஒன்றுபட்டது கிஂக்டம் , கரோலின் ரைட் , மேத்யூ தீப்பொறிகள் , பல்கலைக்கழகம் ஆஃப் எக்ஸெடர் , தனிப்பட்ட மரபணு ப்ராஜெக்ட் ஒன்றுபட்டது கிஂக்டம் , ஜெநெடிக் சோதனை ,

Letter: A tax on the poor


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When in Virginia on state business years ago, I went in to a convenience store for something. There was a big line at one counter composed obviously of less affluent citizens. Why were they there? To buy lottery tickets. From that day on, I’ve seen state gambling as a tax on the poor.
We need revenue. Tax those who can afford it.
David Dierdorff ....

United States , David Dierdorff , State Business Year , Convenience Store , ஒன்றுபட்டது மாநிலங்களில் , நிலை வணிக ஆண்டு , வசதி கடை ,