One of the most hotly-contested fields of genetics revolves around the genetic lineage of ancient Egyptians. A new study of 90 Pre-Ptolemaic, Ptolemaic, and Roman mummies raises as many questions as it answers. Read the rest
A team of Israeli scientists devised a system by which a person can use their thoughts alone to trigger tiny DNA-based nanorobots inside a living creature to release a drug.
The Turkish five lira note, issued in 2009, has a DNA helix. But Nobel laureate Aziz Sancar noticed that the note "shows a left-handed Z-DNA helix winding from left to right, when it should be the other way round." What Sancar doesn't know is that the monetary systems of the world are controlled by the lizard people, whose DNA is exactly like that depicted on the banknote. Read the rest
The U.S. government estimates that hundreds of thousands of untested rape kits languish in police and crime lab storage facilities. The EndTheBacklog project illustrates that there's "more we do NOT know about the backlog than we do know." Read the rest
Entirely happy to use the word "chickenosaurus," NBC News reports that scientists are getting closer to creating a throwback creature by messing with avian DNA: "From a quantitative point of view, we're 50 percent there," a professor of paleontology told them.
Back in 2011, I posted that one of John Lennon's teeth was up for auction. Canadian dentist Michael Zuk bought the molar for approximately $34,000 and says he would eventually like to use it to clone Lennon and raise him as his own son.
"He would still be his exact duplicate but you know, hopefully keep him away from drugs and cigarettes, that kind of thing," Zuk said.
Zuk has all kinds of other plans involving the tooth, including a DNA pendant, fine art photos, a documentary film, charity fundraising... It goes on and on over at JohnLennonTooth.com. (NME) Read the rest
Over the last couple of days, you might have heard about the "duon" — a "second" genetic code that's being hyped as a radical new "breakthrough" in science.
Based solely on the number of words I've put in quotations here, you can probably guess that the actual news doesn't really match the hype. Read the rest
Last week, I told you about the US Supreme Court ruling that made it illegal to patent naturally occurring DNA. In that article, I talked briefly about the fact that the new ruling doesn't cover all DNA. It's still perfectly legal to patent synthetic DNA, and the court documents referred specifically to complementary DNA (aka cDNA).
This is where things get murky. Complementary DNA is a thing that can be both natural and synthetic. And, as a laboratory creation, it's an important step in a common method of replicating naturally occurring DNA. All of which leaves some holes in the idea that the Supreme Court ruling is a simple "win" for open-access science, patent activists, and patients. After all, if you can't patent a gene, but you can patent the laboratory copy of the gene, what's that mean? It's sort of like not being able to patent a novel, but being able to patent a copy of its contents that's had all the white space removed. It seems like everybody is a bit confused by this. So I wanted to take a moment to at least clarify what cDNA is and what some people, on different sides of the science/law/biotech divides, are thinking about it.
It starts with some stuff you learned back in junior high — how information from your DNA gets turned into actual working proteins. Read the rest
We encoded computer files totalling 739 kilobytes of hard-disk storage and with an estimated Shannon information10 of 5.2 × 106 bits into a DNA code, synthesized this DNA, sequenced it and reconstructed the original files with 100% accuracy. Theoretical analysis indicates that our DNA-based storage scheme could be scaled far beyond current global information volumes and offers a realistic technology for large-scale, long-term and infrequently accessed digital archiving. In fact, current trends in technological advances are reducing DNA synthesis costs at a pace that should make our scheme cost-effective for sub-50-year archiving within a decade."Synthetic double-helix faithfully stores Shakespeare's sonnets" (Thanks, Mike Pescovitz!) Read the rest