Intrasoma Variation

Good news for companies attempting to develop high-throughput genome sequencing technology: the genome sequencing market may be much larger than the size of the human population.  This is to say, we all may need to get our genomes sequenced many times over the course of a lifetime.  At least this is the unproven belief  put forth by Kevin Kelly over at the Edge:

I believe, but cannot prove, that the DNA in your body (and all bodies) varies from part to part…While I have no evidence for my belief right now, it is a provable assertion. It will be shown to be true or false as soon as we have ubiquitous cheap full-genome sequences at discount mall prices. That is, pretty soon. I believe that once we have a constant reading of our individual full DNA (many times over our lives) we will have no end of surprises. I would not be surprised to discover that pet owners accumulate some tiny fragments of their pet’s DNA,which has somehow been laterally transferred via viruses to their own cellular DNA. Or that diary farmers amass noticeable fragments of bovine DNA. Or that the DNA in our limbs somehow drift genetically in a "limby" way, distinct from the variation in the cells in our nervous systems.


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