Entering the Postgenome Era

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Science  20 Oct 1995:
Vol. 270, Issue 5235, pp. 368-369
DOI: 10.1126/science.270.5235.368


Genet]icists can now identify about half the estimated 100,000 genes in the human genome, but they don't have a clue about what most of them actually do. Now, two new techniques described in this issue of Science could transform research on gene function. They offer two different ways of detecting the expression of hundreds or thousands of genes at a time, thereby allowing researchers to determine which genes are turned on in particular tissues, and at what levels. And that provides a quick way of assessing how gene expression patterns change during development, disease, and other physiological conditions.

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