(Phys.org)—Many questions arise when two identical twins raised in the same home—fed the same, nurtured the same way—follow disparate paths. How can the identical offspring of a single egg turn out so differently?
Cell & Microbiology
Feb 11, 2013
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Many different tissues and organs form from pluripotent stem cells during embryonic development. To date it had been known that these processes are controlled by transcription factors for specific tissues. Scientists from ...
Cell & Microbiology
Jan 29, 2013
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Berkeley Lab and UC Berkeley researchers have discovered that the transcription factor protein TFIID coexists in two distinct structural states, a key to genetic expression and TFIID's ability to initiate the process by which ...
Cell & Microbiology
Jan 17, 2013
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At crucial points in the metabolism of all organisms, a protein with the unwieldy name of Translation Elongation Factor P (EF-P, for short) takes center stage. What it actually does during protein synthesis has only now been ...
Cell & Microbiology
Dec 14, 2012
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Evolutionary relationships among a group of arthropods from Gondwana, a supercontinent that existed between 510 and 180 million years ago, were investigated by EU scientists using molecular sequencing technology. The results ...
Ecology
Sep 17, 2012
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For about a dozen years, synthetic biologists have been working on ways to design genetic circuits to perform novel functions such as manufacturing new drugs, producing fuel or even programming the suicide of cancer cells.
Cell & Microbiology
Aug 3, 2012
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Planarian flatworms have come under intense study for their renowned ability to regenerate any missing body part, even as adults. But now they may take on a starring role as a model system for studying eye development and ...
Cell & Microbiology
Aug 2, 2012
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Every organism produces a staggering variety of molecules, each with its own particular biological function. Complex interplay between genetic and environmental factors determines the production levels for each compound. ...
Biotechnology
Jul 13, 2012
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Researchers at the IRCM, led by geneticist Dr. Jacques Drouin, recently defined the interaction between two essential proteins that control inflammation. This important breakthrough will be published in tomorrow's print edition ...
Cell & Microbiology
Jul 12, 2012
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During the fall, hundreds of millions of monarch butterflies living in eastern North America fly up to 1,500 miles to the volcanic forests of Mexico to spend the winter, while monarchs west of the Rocky Mountains fly to the ...
Plants & Animals
May 31, 2012
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