|
Post by clone on Oct 2, 2012 12:00:40 GMT -8
Breakthrough study overturns theory of 'junk DNA' in genome The international Encode project has found that about a fifth of the human genome regulates the 2% that makes proteins Wednesday 5 September 2012 20.03 BST <SNIP> The project has identified about 10,000 stretches of DNA, which the Encode scientists have called non-coding genes, that do not make proteins but, instead, a type of RNA – the single-stranded equivalent of DNA. There are many types of RNA molecule in cells, each with a specific role such as carrying messages or transcribing the DNA code in the first step of making a protein. However, the 10,000 non-coding genes carry instructions to build the large and small RNA molecules required to regulate the actions of the 20,000 protein-coding genes. www.guardian.co.uk/science/2012/sep/05/genes-genome-junk-dna-encode
|
|
|
Post by Beothuk on Jun 14, 2013 16:24:45 GMT -8
Beothuk not extinct The statue Spirit of the Beothuk stands overlooking the site where the Beothuk once made their home in Boyd’s Cove. DNA testing is showing a link between the Beothuk and other peoples. Published on April 15, 2013 Mi'kmaq chief cites DNA results as evidence Topics : Miawpukek First Nation , Beothuk Institute , DNA of members , Conne River , Newfoundland , Iceland Science is proving something Mi’sel Joe has always known — European settlers did not drive the Beothuk to extinction. “Not by a long shot,” says the chief of the Miawpukek First Nation in Conne River. “They may have gotten to a point where they couldn’t find any more when they were looking, but that’s not to say they were all gone, and DNA will prove that.” In fact, Joe says it already has. “I know of DNA testing that has been done ... that shows there is a link between our people (the Mi’kmaq) and the Beothuk people,” he says, adding that’s happened in the past six months or so. www.theaurora.ca/News/2013-04-15/article-3220150/Beothuk-not-extinct/1
|
|
|
Post by guest on May 23, 2015 8:28:00 GMT -8
Epigraphic Research <snips> This combination of tightly grouped clusters of ancient Chinese scripts in Arizona is profoundly significant. In addition to the purposeful numbering of these clusters with ancient Chinese scripts, their interiors are subdivided by one or more transverse lines, forming boxes into which the ancient author placed Chinese symbols in a meaningful and readable manner. This is clearly an example of ancient Chinese writing from pre-Columbian times pecked long ago into the rocks of North America. To date, the ongoing research program of Asiatic Echoes has identified a total of 81 ancient Chinese pictogram-glyphs in the rock writing record of North America. These images have all been confirmed as Chinese scripts by noted independent experts. Many of these written symbols are located in close proximity to one another and, as such, they preserve readable historical messages. www.asiaticechoes.org/research_photographs/ongoing_supplemental_research
|
|
|
Post by Guest on May 26, 2015 1:20:35 GMT -8
Release Date: May 20, 2015 Oldest stone tools found in Kenya The Earth Institute at Columbia University announced today (May 20, 2015) that scientists working in the desert badlands of northwestern Kenya have found stone tools dating back 3.3 million years, long before the advent of modern humans. They are by far the oldest such artifacts yet discovered. The tools, whose makers may or may not have been some sort of human ancestor, push the known date of such tools back by 700,000 years. They also may challenge the notion that our own most direct ancestors were the first to bang two rocks together to create a new technology. The discovery is the first evidence that an even earlier group of proto-humans may have had the thinking abilities needed to figure out how to make sharp-edged tools. The stone tools mark “a new beginning to the known archaeological record,” say the authors of a new paper about the discovery, published May 20 in the leading scientific journal Nature. earthsky.org/earth/oldest-known-stone-tools-found-in-kenya
|
|
|
Post by Guest on Jun 22, 2015 9:41:33 GMT -8
An early European had a close Neandertal ancestor (e) Science News Published: Monday, June 22, 2015 - 12:32 in Paleontology & Archaeology Neandertals became extinct about 40,000 years ago but contributed on average one to three percent to the genomes of present-day Eurasians. Researchers have now analyzed DNA from a 37,000 to 42,000-year-old human mandible from Oase Cave in Romania and have found that six to nine percent of this person's genome came from Neandertals, more than any other human sequenced to date. esciencenews.com/articles/2015/06/22/an.early.european.had.a.close.neandertal.ancestor
|
|