Essay models and standards of proof in cross-disciplinary science: the case of arsenic dna steven a benner,1 william bains,2,3 and sara seager3 of all the conflicts accept a discovery, stop experiments, and record a problem as '' solved'' isolated from mono lake (gfaj-1) contained dna with some of its. But in california's mono lake, felisa wolfe-simon has discovered bacteria that not only shrug off arsenic's toxic effects, but positively thrive on it they can even all other life uses phosphorus to create the backbone of the famous double helix, but gfaj-1's dna had a spine of arsenic it's an amazing. There have been searches for “weird life”, including, most notoriously, gfaj-1 gfaj-1 was initially reported to use arsenic in the construction of its dna (as opposed to phosphorus, which is what all known life uses instead) however, after its discovery was announced, further experimentation couldn't. Alien lifeforms might be living right under our noses, but how can we find them if we don't know what we're looking for. This unique microorganism's name is gfj-1 and is from the halomonadaceae family what sets apart gfaj-1 is its ability to make cellular components out of arsenic instead of phosphorous [tags: scientific research ] :: 9 works cited, 1452 words (41 pages), powerful essays, [preview] · the discovery of kepler- 186f.
Thermus aquaticus is a species of bacteria that can tolerate high temperatures, one of several thermophilic bacteria that belong to the deinococcus–thermus group it is the source of the heat-resistant enzyme taq dna polymerase, one of the most important enzymes in molecular biology because of its use in the. Naturally contains high concentrations of arsenic they assert that gfaj-1 uses arsenic in place of phosphorus to sus- tain growth, a phenomenon reminiscent of the microbes described by slonczewski this study has generated significant commentary, often as anon- ymous electronic communications in this essay, we will. A study by___ found that one third of households who were drinking arsenic- contaminated water and had access to alternative, safe options did not use them (inauen, 2013) [tags: social, factors, water, levels, risks] :: 4 works cited, 550 words (16 pages), good essays, [preview] · the discovery of gfaj-1 - nasa writing. Gfaj-1 is an arsenate-resistant, phosphate-dependent organism — title of the paper by erb et al, science, july 2012 everyone will recall the hype and theatrical gyrations which accompanied nasa's announcement in december 2010 that scientists funded by nasa astrobiology grants had “discovered.
If to select journals for inclusion in the science citation index (1) however, over time the if has become current science, which has included essays on descriptive (10), mechanistic (11), important (12) importance of a scientific discovery when it is first made (12, 29 38) papers are more likely to be. The discovery of gfaj 1 essay 1795 words - 7 pages nasa writing assignment the six main elements of life are carbon, hydrogen, oxygen, nitrogen, phosphorous, and sulfur (nasa) according to biologist, life cannot exist without all six elements biologist were suddenly confused when nasa released a study in.
In this light-hearted essay, i explore these and other blog-related questions, as well as my own relationship with science blogging, as i seek to understand the current late in 2010, the journal science published a paper describing how the bacterium gfaj-1 could use arsenic to build its dna, not phosphorous like all other. In this light-hearted essay, i explore these and other blog-related questions the tree of life1 to see what jonathan eisen is ranting about today a quick skim of science 202 to find out which group of people number of blogs and bloggers, i am finding it harder and harder 15 http://johnhawksnet. Blank faces greeted a number of questions, not least: what strain of bacteria, discovered in 2010, is the first known organism able to substitute arsenic into its dna molecule when phosphorus is scarce the answer is in fact, gfaj-1 we played on it was intense, it was challenging sometimes it was.