297 posts tagged with Genetics.
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get your group on

The Price of Altruism - George Price, a (troubled) father of group selection thru his discovery of the eponymous Price Equation, has a rather interesting biography... [more inside]
posted by kliuless on Jan 15, 2011 - 9 comments

Good News for Pregnant Needlephobes....

Invasive amniocentesis and chorionic villi sampling (CVS) tests are commonly used to determine the chromosomal, structural and genetic abnormalities in fetuses. But could they eventually become obsolete? A Chinese study has found that a complete copy of the fetal genome exists in the mother's blood, suggesting many prenatal diagnoses could potentially be performed noninvasively. [more inside]
posted by zarq on Dec 8, 2010 - 30 comments

Possible pre-Columbian Native American gene found in modern Icelanders

An Icelandic company called deCODE genetics (previously) has found evidence, though not conclusive, that an unknown American woman traveled to Iceland, possibly against her will, as early the year 1000 but not later than 1700. She had offspring in Iceland with natives. 80 of her descendants are still extant in that country. This finding has been announced in a pre-print online publication of the American Journal of Physical Anthropology. The work involved explorations of mitochondrial DNA, which are frequently employed to examine humans' centuries-old lineages. One surprising result is that this lineage does not seem to line up with previously known Native American genetic markers, but the authors believe that the explanation above is "[more] likely" than this common ancestor being European or Asian. (Via Daily Mail.) [more inside]
posted by knile on Nov 19, 2010 - 28 comments

Genetic basis found for ADHD

"Our findings provide genetic evidence of an increased rate of large CNVs in individuals with ADHD and suggest that ADHD is not purely a social construct." (abstract) Researchers find a genetic basis for ADHD, and the researcher hopes the finding will reduce the stigma associated with the disorder. But maybe it's more complex than just biology. In any case, children who are diagnosed at an early age are 10 times more likely to be depressed as adolescents. (abstract)
posted by desjardins on Oct 6, 2010 - 57 comments

"...endless forms most beautiful and most wonderful have been, and are being, evolved."

Our minds boggle at how the wolf could become the chihuahua, the Saint Bernard, the poodle and the Komondor. Artificial selection was likewise responsible for transforming the humble wild mustard plant Brassica oleracea into cabbage, broccoli, Brussels sprouts and the breathtaking fractal Romanesco, all in the span of a few centuries. [more inside]
posted by overeducated_alligator on Aug 23, 2010 - 54 comments

The reanimated zombie gene

Noncoding "junk" DNA is a signature part of the genomes of eukaryotes. Scientists have now identified a case of such DNA causing a genetic disease (Facioscapulohumeral Muscular Dystrophy) in certain genetic backgrounds by stabilizing the messenger RNA of a gene.
posted by jjray on Aug 19, 2010 - 20 comments

'Priceless collection' in Russia was never registered so is therefore worthless and does not officially exist, say developers

In 1926, Nikolai Vavilov founded the world's first modern seedbank, and amassed a collection which today contains over 90% unique varieties of plant, contained in no other collection in existence. For his opposition to Lysenkoism he died in prison, and several of his colleagues famously starved to death instead of eating their specimens during the Siege of Leningrad. Now the Pavlovsk seedbank facility has been seized by the Federal Agency for Public Estate Management, and pending a court ruling will be demolished - contents and all - to build a housing development. The collection cannot be moved in time because it is a working seedbank of living plants.
posted by mek on Aug 9, 2010 - 40 comments

The fastest white man in history.

The first European who is not of African descent to run 100 metres in less than 10 seconds. [more inside]
posted by three blind mice on Jul 28, 2010 - 103 comments

The Domestication of Man: The Social Implications of Darwin

New Adventures in Recent Evolution - In the last few years, biologists peering into the human genome have found evidence of recent natural selection. cf. Social Darwinism: 21st century edition [previously] (via ip) [more inside]
posted by kliuless on Jul 20, 2010 - 19 comments

But will I be able to build my very own Milla Jovovich?

Sir, Your Liver Is Ready: Behind the Scenes of Bioprinting (Previously on MeFi)
posted by zarq on Jul 12, 2010 - 9 comments

Adaptation to High Altitude in Tibet

Tibetans May Be Fastest Evolutionary Adapters Ever. "A group of scientists in China, Denmark and the U.S. recently documented the fastest genetic change observed in humans. According to their findings, Tibetan adaption to high altitude might have taken just 3,000 years. That's a flash, in terms of evolutionary time, but it's one that's in dispute."
posted by homunculus on Jul 2, 2010 - 12 comments

Finding the past

There are some unique finds that tell us about the early lives of people. But of course there are other ways...
posted by rosswald on Jun 9, 2010 - 10 comments

"You Can't Patent Nature"

Followup to this post: A US District Court has ruled that Myriad Genetic's patents on breast cancer genes BRCA1 and BRCA2, which allow them to hold exclusive rights to a widely used genetic test for inherited breast and ovarian cancer susceptibility, are invalid. Genomics Law Report analyzes the ruling in two posts. The decision is likely to be challenged in a legal appeal — but if upheld, it could have huge implications for the biotechnology industry. [more inside]
posted by zarq on Mar 31, 2010 - 51 comments

Mushroom Sex

"People who use sows to hunt for truffles often find it hard to prevent a sex-crazed animal from eating the truffle she has found and may lose fingers in the attempt." (via) The NYT on decoding the genome of the Périgord Black Truffle . Attempts to make truffles cheaper and more accessible in the past have been met with some resistance.
posted by The Whelk on Mar 30, 2010 - 32 comments

Whence Altruism?

A new study suggests that humanity's sense of fair play and kindness towards strangers is determined by culture, not genetics. Speculation: the finding may be directly related to the rise of religion in human history, as well as more complex economies. (Via). [more inside]
posted by zarq on Mar 22, 2010 - 49 comments

I'm sure this'll end well....

We may soon be able to clone Neanderthals. But should we? An essay from Archaeology Magazine examines the ethical, scientific and legal ramifications. (Via Heather Pringle's Time Machine blog, where essay author Zach Zorich posted a reply and elicited a response.) [more inside]
posted by zarq on Feb 22, 2010 - 207 comments

"People are trying things; kettles are exploding. Everyone’s attempting magic right and left."

Do-It-Yourself Genetic Engineering at iGEM [more inside]
posted by brundlefly on Feb 12, 2010 - 23 comments

More humans are alive today than had ever lived before 10,000 BC

The human population of Earth has almost always been about 50,000. [more inside]
posted by grobstein on Jan 19, 2010 - 85 comments

Cracking the Cancer Code

Cracking the Cancer Code: We already know that all cancers are caused by DNA mutations acquired during a person's lifetime. But what mutations actually cause cancer? We may be one step closer to finding out. International research teams led by the Cancer Genome Project at the Wellcome Trust Sanger Institute have now mapped the entire genetic code of two of the most common human cancers: lung and skin (malignant melanoma). Their findings have the potential to revolutionize preventative and treatment therapies as well as pave the way for new early detection tests. More. [more inside]
posted by zarq on Dec 17, 2009 - 36 comments

The Future Gets Closer, Again

Interesting developments in med-tech: gene testing machines for doctors, a plan to engineer stem cells to kill HIV, a new way to repair damaged nerves, the next generation of retinal implants, and the first bionic fingers up for sale. (Bonus for those uninterested in medicine: the newest take on a Minority Report-style interface, courtesy of MIT.)
posted by StrikeTheViol on Dec 11, 2009 - 2 comments

Orchids and dandelions

The orchid hypothesis “profoundly recasts the way we think about human [genetic] frailty.”
posted by oinopaponton on Dec 8, 2009 - 50 comments

Learn.Genetics

grumblebee's post about cell size and scale the other day was quite fascinating. Pulling back to the home for that site, the Genetic Science Learning Center at the University of Utah delivers educational materials on genetics, bio-science and health topics ranging from stem cells to gene therapy, and from epigenetics to heredity. Explore the neurobiology of normal and addicted brains and the genetic contribution to this chronic disease.
posted by netbros on Oct 31, 2009 - 4 comments

synthetic biology

Our biotech century: the noocytes are coming... (previously)
posted by kliuless on Oct 4, 2009 - 25 comments

UK Asylum Seekers: Let The Right Ones In

The Home Office, the UK government department responsible for immigration control, has initiated a program to test the DNA from of potential asylum seekers in an attempt to confirm their true nationalities. The initial program is a six-month pilot limited to claimants arriving from the Horn of Africa. The program, currently using forensic samples provided on a voluntary basis, could potentially expand to other nationalities if successful. The Home Office spokeswoman said ancestral DNA testing would not be used alone but would be combined with language analysis, investigative interviewing techniques and other recognized forensic disciplines, but many are decrying the "deeply flawed" program, from refugee support groups to scientists in the genetic forensics fields (via). [more inside]
posted by filthy light thief on Sep 30, 2009 - 55 comments

A Few Strange Notes About Schizophrenia

Here's a strange one for the books: Science has taken notice that a really, really LARGE proportion of schizophrenic patients smoke. In fact, Scientific American Mind reports that an average of 85% of schizophrenic patients smoke cigarettes compared to only 20% in the general population. Many schizophrenics also appear to have abnormal thermoregulation, an impaired ability to understand body language, an inability to perceive an optical illusion called "the hollow mask illusion," an impaired ability to produce a brain protein known as the muscarinic M1 receptor, and an abnormally large number of genetic mutations known as CNV's or "copy number variations."
posted by mdpatrick on Sep 29, 2009 - 65 comments

Camp Sundown visits the Yankees

"The Yankees' best game this season came after the lights were dimmed." [more inside]
posted by zarq on Aug 14, 2009 - 39 comments

A sea of green

"Algae is the ultimate biological system using sunlight to capture and convert carbon dioxide into fuel... I came up with a notion to trick algae into pumping more [fuel] out." Craig Venter's Synthetic Genomics partners with ExxonMobil in a $600M project to harvest biofuels from genetically engineered algae. "We have modest goals of replacing the whole petrochemical industry." [previously] [more inside]
posted by Blazecock Pileon on Jul 14, 2009 - 45 comments

prehistoric woof

The Village Dog Project is an ongoing research project to document genetic diversity in pariah dogs. These dogs haven't been subject to breed pressure, and may be able to help researchers learn more about the transition from wolf to dog. (via)
posted by Pants! on Jun 23, 2009 - 5 comments

Discover Your Inner Frankenstein

"In Massachusetts, a young woman makes genetically modified E. coli in a closet she converted into a home lab. A part-time DJ in Berkeley, Calif., works in his attic to cultivate viruses extracted from sewage. In Seattle, a grad-school dropout wants to breed algae in a personal biology lab. These hobbyists represent a growing strain of geekdom known as biohacking, in which do-it-yourselfers tinker with the building blocks of life in the comfort of their own homes." They might be discovering cures for diseases or developing new biofuels, but are their experiments too risky? Via. [more inside]
posted by amyms on May 19, 2009 - 101 comments

Do they preserve scientific transparency, protect profits or both?

On behalf of medical organizations, universities, & individual patients, pathologists and genetics researchers, the ACLU has filed a lawsuit against Utah-based Myriad Genetics and the US Patent and Trademark Office. Myriad holds the US patents to the BRCA1 and BRCA2 genes, associated with hereditary causes of breast and ovarian cancers. Their patents guarantee the company the right to prevent anyone else from testing or studying those genes, which the ACLU says is unconstitutional and inhibits researchers from finding treatments and cures. [more inside]
posted by zarq on May 13, 2009 - 64 comments

The Neurobiology of Birdsong

The universal grammar of birdsong is genetically encoded. "A new study, published online in the journal Nature, shows that the songs of isolated zebra finches evolve over multiple generations to resemble those of birds in natural colonies. These findings show that song learning in birds is not purely the product of nurture, but has a strong genetic basis, and suggest that bird song has a universal grammar, or an intrinsic structure which is present at birth."
posted by homunculus on May 5, 2009 - 23 comments

The Sins of your Fathers

Familial genetic profiling of law enforcement DNA databases has already been used to succesfully establish both guilt and innocence. Legal and moral questions on these expanded techniques abound and are comprehensively explored by a speaker at a recent FBI symposium on the topic. In the author's words, scenarios previously limited to movies like Minority Report are unfolding quietly, before most of us have thought about the consequences. (Via)
posted by protorp on Mar 18, 2009 - 29 comments

Can't someone else do it?

Will the US become more progressive in the future or will advances in neuroscience cause the abandonment of the "equality premise"? [more inside]
posted by 445supermag on Mar 13, 2009 - 74 comments

In-vitro genetic screening: is the science cringe worthy, or praise worthy?

Designer Babies: For a mere $18,400 you could have your very own sex-screened child. Don't care about the sex? How about screened for hair color, eye color, or cancer tendencies? (via (via)) [more inside]
posted by tybeet on Feb 26, 2009 - 70 comments

First clone of extinct species

In 2000, the Spanish Pyrenean Ibex (a type of mountain goat) went extinct. In early 2009 it was brought back to life, the first time an extinct species has been "successfully" cloned. The newborn bucardo died of respiratory failure minutes after birth, setting a second extinction record.
posted by stbalbach on Feb 15, 2009 - 34 comments

DIY DNA research

Hugh Reinhoff has sequenced his daughters DNA at home attempting to diagnose her unique genetic mutation. [more inside]
posted by jacalata on Feb 2, 2009 - 22 comments

The Genomic Self

My Genome, My Self: Steven Pinker considers what we can expect from personal genomics. Searching for Intelligence in Our Genes: Carl Zimmer looks at the hunt to learn about the role of genes in intelligence.
posted by homunculus on Jan 10, 2009 - 6 comments

Green Genes

"Leaves that crawl".... Assimilated chloroplasts give a species of sea slug its deep green glow; and to keep it, Elysia Chlorotica becomes even a little more plant-like....
posted by Kronos_to_Earth on Nov 25, 2008 - 23 comments

The gene is in an identity crisis

Now: The Rest of the Genome. "Only 1 percent of the genome is made up of classic genes. Scientists are exploring the other 99 percent and uncovering new secrets and new questions."
posted by homunculus on Nov 11, 2008 - 13 comments

Remember to Forget

Dr. Joe Z. Tsien has previously created a strain of mice unable to form memories, one with much improved memory - "Doogie" mice - and can now erase single mouse memories. "Our work reveals a molecular mechanism of how that can be done quickly and without doing damage to brain cells." Remembering to forget....
posted by Kronos_to_Earth on Oct 24, 2008 - 45 comments

How We Evolve

How We Evolve: "A growing number of scientists argue that human culture itself has become the foremost agent of biological change, making us — for the past 10,000 years or so — the inadvertent architects of our own future selves." [more inside]
posted by homunculus on Oct 9, 2008 - 49 comments

Small tweak to DNA may have given us our unique hands

Fingering What Make Us Human: Did a gene enhancer humanise our thumbs?
posted by homunculus on Sep 7, 2008 - 41 comments

genome quilts

Genome Quilts "The quilts are visually pleasing, with their strong colors and seemingly traditional design, but they hide and reveal an entirely other construct of information." [via]
posted by dhruva on Sep 5, 2008 - 8 comments

retrovirally transforming pancreatic cells from adult mice into insulin-producing beta cells

Scientists Repurpose Adult Cells - "Scientists have transformed one type of fully developed adult cell directly into another inside a living animal, a startling advance that could lead to cures for a variety of illnesses and sidestep the political and ethical quagmires associated with embryonic stem cell research." [nature abstract, nature writeup, audio announcement]
posted by kliuless on Aug 27, 2008 - 21 comments

science and futurism overlap

One Pill Makes You Autistic -- And One Pill Changes You Back. It might also lead to recreational autism, where people who want to take a break from having messy emotions about other people decide to unplug and enter a state where human relationships are no more important than inanimate objects. [more inside]
posted by nickyskye on Aug 18, 2008 - 67 comments

GATTACA

The first ever, it is believed, has been produced at Cornell University. The feat was apparently much overlooked, and has many concerned over the lack of public debate of this field of research. Genetically modified human embryos.
posted by Kronos_to_Earth on May 13, 2008 - 45 comments

"Big Bird says it's time to wake up..."

A new round of genetic tests has confirmed it: The 'big lizards' of our childhood fantasies were more likely 'big birds.' In fact, they probably even had feathers, and looked more like this than this. Mind blowing, I know, but I guess this demonstrates that, despite what some may think, science really doesn't have a problem admitting that it got something wrong when new evidence comes to light.
posted by saulgoodman on Apr 24, 2008 - 75 comments

Neanderthal-Human Babies

Any admixture would have to be driven by male Neanderthals. Two years ago we discussed morphological evidence of nontrivial interbreeding. Since then Neanderthal DNA has been examined for genetic support for this model of human evolution, largely contradicting the belief in Neanderthal contribution to modern humanity. Indeed any contribution from the Neanderthal gene pool to the evolution of modern humans might be very rare and indeed it appears that the best candidate gene thus (MC1R) far likely was a result of convergent evolution. [more inside]
posted by wantwit on Mar 20, 2008 - 19 comments

23 And Me...And Google...And Your Genome

Want your genome on a hard drive but don't have the money? 23andMe can give you almost that: a scan of your SNPs, presented online and complete with analyses derived from up-to-date medical research (and a few educated guesses). Eight months ago, blogs were rife with speculation of who 23 could be and what the connection with Google could mean. [more inside]
posted by artifarce on Feb 3, 2008 - 33 comments

Am I Blue?

The allure of blue eyes has long been celebrated. In the Odyssey, Homer gives the goddess Athena "bright blue eyes," and our fascination persists to this day with actors like Brad Pitt and Naomi Watts. Until recently, however, no one could explain the phenomena. [more inside]
posted by CheeseDigestsAll on Feb 2, 2008 - 38 comments

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