"What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago"
About this Quote
The subtext is methodological humility with teeth. Baltimore is pointing to a lopsided map of knowledge: we’re fluent in a handful of genes precisely because they forced themselves into view through dramatic, old-school phenotypes - Mendelian disorders, obvious developmental effects, cancers with unmistakable genetic fingerprints. Those “made themselves evident” genes didn’t become famous because science was especially wise; they became famous because nature gave us big, legible signals. Most genes don’t shout. They whisper through networks, timing, cell type, and environment, and their effects can look like statistical fog instead of a clear trait.
Context matters here: Baltimore, a giant of molecular biology, is speaking from the long arc of a field that moved from elegant one-gene stories to messy systems biology. The quote’s intent is to shift the cultural posture of genetics away from deterministic headlines and toward conditional causality: genes as participants, not soloists. It’s also a quiet critique of funding and publishing incentives that reward clean narratives over context-dependent reality.
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| Topic | Science |
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| Source | Help us find the source |
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Citation Formats
APA Style (7th ed.)
Baltimore, David. (2026, January 16). What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago. FixQuotes. https://fixquotes.com/quotes/what-does-gene-a-do-what-does-gene-b-do-what-does-124207/
Chicago Style
Baltimore, David. "What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/what-does-gene-a-do-what-does-gene-b-do-what-does-124207/.
MLA Style (9th ed.)
"What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/what-does-gene-a-do-what-does-gene-b-do-what-does-124207/. Accessed 12 Feb. 2026.