Scientists believe that prior to the advent of DNA as the earth's primary genetic material, early forms of life used RNA to encode genetic instructions. What sort of genetic molecules did life rely on before RNA?
Biotechnology
Nov 9, 2012
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(Phys.org)—FBI, a camera system to recognzie the genetic identity of fruit flies and track their movements will revolutionize the study of their behavior. An article on this advance is being published today in PLOS ONE.
Engineering
Nov 8, 2012
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A study conducted by scientists at the Royal Botanic Gardens, Kew (UK), in collaboration with scientists in Ethiopia, reports that climate change alone could lead to the extinction of wild Arabica coffee (Coffea arabica) ...
Ecology
Nov 7, 2012
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Washington State University researchers have found that viruses will join forces to overcome a plant's defenses and cause more severe infections.
Cell & Microbiology
Oct 16, 2012
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To discover why Neandertals are most closely related to people outside Africa, Harvard and Max Planck Institute scientists have estimated the date when Neandertals and modern Europeans last shared ancestors. The research, ...
Archaeology
Oct 4, 2012
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A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to new ...
Biotechnology
Sep 19, 2012
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(Phys.org)—Researchers from North Carolina State University have found identical strains of antibiotic-resistant Campylobacter coli (C. coli) in both antibiotic-free (ABF) and conventionally raised pigs. This finding may ...
Plants & Animals
Sep 17, 2012
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An elaborate system of leads spreads across our hearts. These leads – the heart's electrical system – control our pulse and coordinate contraction of the heart chambers. While the structure of the human heart has been ...
Other
Sep 14, 2012
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The first complete map of the ants' olfactory system has discovered that the eusocial insects have four to fives more odorant receptors—the special proteins that detect different odors—than other insects.
Plants & Animals
Sep 10, 2012
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A lone rooster sees a lot of all the hens in the flock, but the hen with the largest comb gets a bigger dose of sperm - and thus more chicks. This sounds natural, but behind all this is humanity's hunger for eggs.
Plants & Animals
Sep 4, 2012
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