Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of various short, single-stranded RNA molecules that regulate gene expression by binding to messenger RNA molecules, usually in untranslated regions.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun genetics A single-stranded, non-coding form of
RNA , having only about 20-30nucleotides , that has a number of functions including theregulation ofgene expression
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Measuring levels of this so-called microRNA, which is also associated with metastatic breast cancer in humans, may more accurately predict the likelihood of metastasis (which accounts for 90% of cancer-related deaths) and ultimately help determine patient prognoses.
THE MEDICAL NEWS 2009
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There are several means by which to change the histone code, including a recently discovered regulator of this process called microRNA.36 Another involves methylation, a process by which access to the gene sequence is either allowed or denied.
The Chemistry of Calm M.D. Henry Emmons 2010
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Levels of one of those molecules, a tiny snippet of RNA known as microRNA-124, drop rapidly when a bird hears a new song, the researchers report.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews Science News 2010
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Fisher, now at VCU, and colleagues report that hPNPaseold-35 selectively targets and degrades a genetic component known as microRNA-221.
PhysOrg.com - latest science and technology news stories 2010
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Levels of one of those molecules, a tiny snippet of RNA known as microRNA-124, drop rapidly when a bird hears a new song, the researchers report.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews Science News 2010
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The new study examines a noncoding gene called microRNA-138.
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Fisher, now at VCU, and colleagues report that hPNPaseold-35 selectively targets and degrades a genetic component known as microRNA-221.
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Fisher, now at VCU, and colleagues report that hPNPaseold-35 selectively targets and degrades a genetic component known as microRNA-221.
PhysOrg.com - latest science and technology news stories 2010
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Fisher, now at VCU, and colleagues report that hPNPaseold-35 selectively targets and degrades a genetic component known as microRNA-221.
PhysOrg.com - latest science and technology news stories 2010
-
The new study examines a noncoding gene called microRNA-138.
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