Extract
Looking at Variation in Numbers
The massive efforts to systematically find and catalog single nucleotide polymorphisms (SNPs) bear witness to the conviction that small genomic changes may provide clues to the origins of such things as heart problems, obesity, and pharmacologie responses.
But another type of variation, largely overlooked by the genetics community, might ultimately make equally important contributions to health. Large, submicroscopic rearrangements comprise about 5%-io% of the human genome. Many of these contain duplications that vary in the number of times and ways they are repeated: tandemly, at distal parts of ...See the full content of this document
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