David Botstein in an undated photo. He solved what a colleague called “the biggest problem in human genetics”: how to locate individual genes.
2026-03-20 1052词 困难
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Dr. Botstein began his career at the Massachusetts Institute of Technology in the early 1970s, when little was known about genes and how they interact. The human genome was understood to be a vast stretch of DNA, and the idea of locating within it any one of the approximately 20,000 individual genes that build and operate the body was daunting.
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