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Latest Guanine 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...


Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'