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Latest Nucleobase Stories

2010-06-15 00:38:24

For scientists attempting to understand how the building blocks of RNA originated on Earth, guanine -- the G in the four-letter code of life -- has proven to be a particular challenge. While the other three bases of RNA -- adenine (A), cytosine (C) and uracil (U) -- could be created by heating a simple precursor compound in the presence of certain naturally occurring catalysts, guanine had not been observed as a product of the same reactions. By adding ultraviolet light to a model prebiotic...

2009-06-10 14:25:00

Proteins responsible for this type of DNA repair may also limit the effectiveness of chemotherapy agents, which aim to injure tumor DNAA team of researchers at The Scripps Research Institute and other institutions has discovered a new way by which DNA repairs itself, a process that is critical to the protection of the genome, and integral to prevention of cancer development.Scientists who study the repair of the DNA bases, which make up the information in the human genome, had known of only...

2008-06-17 15:00:13

A British-led study has confirmed for the first time that an important component of early genetic material is extraterrestrial in origin. The scientists from Imperial College London say an important component of early genetic material found in meteorite fragments suggests parts of the raw materials to make the first molecules of DNA and RNA might have come from the stars. The scientists, from Europe and the United States, said the materials they found include the molecules uracil and...


Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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