Painstaking new analysis of the genetic sequence of the X chromosome—long perceived as the "female" counterpart to the male-associated Y chromosome—reveals that large portions of the X have evolved to play a specialized ...
Biotechnology
Jul 21, 2013
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How is it that a complex organism evolves from a pile of dead matter? How can lifeless materials become organic molecules that are the bricks of animals and plants? Scientists have been trying to answer these questions for ...
Materials Science
Jun 25, 2013
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A research team from NPL and the University of Edinburgh have invented a new way to zip and unzip DNA strands using electrochemistry.
Biochemistry
Apr 18, 2013
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Every time a cell divides it makes a carbon copy of crucial ingredients, including the histone proteins that are responsible for spooling yards of DNA into tight little coils. When these spool-like proteins aren't made correctly, ...
Cell & Microbiology
Mar 24, 2013
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Understanding how and why diversification occurs is important for understanding why there are so many species on Earth. In a new study published on 19 February in the open access journal PLOS Biology, researchers show that ...
Evolution
Feb 19, 2013
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(Phys.org)—Plant and animal cells contain two genomes: one in the nucleus and one in the mitochondria. When mutations occur in each, they can become incompatible, leading to disease. To increase understanding of such ...
Biotechnology
Feb 5, 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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(Phys.org)—Conventional wisdom holds that genes determine the shape and structure (morphology) of animals, but something else may be at play. A new study shows that a roundworm (P. pacificus) regulates its offspring's morphology ...
Cell & Microbiology
Jan 4, 2013
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(Phys.org)—The traditional genome sequencing process requires thousands of cells (or more) to provide sufficient DNA, and this means that variations that are only present in a small number of cells―such as early cancer ...
Scientists at Rochester Institute of Technology have published the whole genome sequence of bacteria associated with Jamaican sugarcane and Riesling grapevines in the September and November issues of the Journal of Bacteriology, ...
Cell & Microbiology
Dec 17, 2012
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