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About 5 or 6 years ago, I thought about sequencing my DNA with them. I'm glad I didn't seriously consider it or actually go through with it.
by henry2023 3y ago
About 5 or 6 years ago, I thought about sequencing my DNA with them. I'm glad I didn't seriously consider it or actually go through with it.
- benchtobedside 3y agoWorth noting that 23andMe, plus many other low cost genealogy/health-focused companies do not sequence your DNA. Instead, they perform what is called a genotyping microarray test, which looks at less than 0.1% of your genome. To quote from 23andMe: "In order to be genotyped, the amplified DNA is “cut” into smaller pieces, which are then applied to our DNA chip (also known as a microarray), a small glass slide with millions of microscopic “beads” on its surface. Each bead is attached to a “probe," a bit of DNA that matches one of the genetic variants that we test. The cut pieces of your DNA stick to the matching DNA probes. A fluorescent label on each probe identifies which version of that genetic variant your DNA corresponds to." Source: https://customercare.23andme.com/hc/en-us/articles/227968028-How-23andMe-Personal-Genetic-Service-Works https://customercare.23andme.com/hc/en-us/articles/227968028...