DNA

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Pig Lung Transplants for Humans Move Closer

Ethicists object to creating human-animal hybrid

(Newser) - Animal organ transplants in humans are now a step closer to reality: Scientists have successfully combined animal lungs with human blood, keeping a pig lung alive and functioning as the blood flowed through it. “The blood went into the lungs without oxygen and came out with oxygen, which is...

Scientists Hope to Clone Perfect Christmas Tree

Someday, they might even glow by themselves

(Newser) - Scientists are busy trying to take the fun out of the hunt for the perfect Christmas tree. Danish researchers are trying to crack the genome of the conifer for the first time, a development that could lead to oh-so-perfect trees and possibly even flame-retardant needles. Another group in Britain is...

Mutant Genes Linked to Long Life

DNA-protecting enzyme may be key to living to 100

(Newser) - Scientists have spotted a link among people who live to age 100: high levels of telomerase, an enzyme that protects DNA and could possibly be simulated in life-lengthening drugs. The enzyme repairs telomeres, end sections of DNA that have been likened to plastic tips that prevent shoelaces from unraveling. In...

Map of Cell's Machinery Wins Chemistry Nobel

Trio of laureates includes first woman to win prize in 45 years

(Newser) - The Nobel Prize in chemistry was awarded today to three scientists who mapped the structure of the ribosome, the part of the cell that reads DNA and uses its information to  create proteins. All three chemists constructed three-dimensional models of the ribosome, using X-ray crystallography to chart hundreds of thousands...

3 US Genetics Researchers Win Medicine Nobel

Work in replication of chromosomes may aid cancer treatment

(Newser) - Three American scientists won the Nobel Prize for Medicine today for their work on the replication of chromosomes, which has implications for cancer, aging, and stem cell research. The laureates focused on a string of DNA at the end of chromosomes, called telomeres, and discovered an enzyme that allows dividing...

Gym Rats Can Thank Their DNA
 Gym Rats Can Thank Their DNA 
Sep 7, 2009 4:49 AM CDT

Gym Rats Can Thank Their DNA

Desire to work out linked to genes, twin study suggests

(Newser) - People driven to pump iron or chill out on the sofa may differ as much in their DNA as they do in their activity levels, reports the Los Angeles Times. Scientists have discovered that identical twins are twice as likely to have similar workout habits as fraternal twins, indicating exercise...

Paris Keeps Cut Hair to Dodge DNA Testing

Jackson's daughter gets haircut during retail therapy trip with grandmother

(Newser) - The hair snipped from Paris Jackson's head last week won't be falling into the hands of the genetic paparazzi. The Las Vegas salon that cut the 11-year-old's hair carefully swept up, bagged, and handed over every last strand, apparently to stop potential thieves from running a DNA test on the...

MJ's Credit Score: Pretty Crappy
 MJ's Credit Score: 
 Pretty Crappy 
JACKSON ROUNDUP
Aug 28, 2009 9:03 AM CDT

MJ's Credit Score: Pretty Crappy

Plus: DNA tests and sperm samples and paternity questions, oh my!

(Newser) - If Michael Jackson hadn’t been the King of Pop, he probably would have had trouble getting a loan. His average credit score was a “very low” 563.67, TMZ reports—the average Californian’s is 672. Collections and delinquent accounts contributed to the score, and Barneys even shut...

DNA Testing Snags Fish Imposters
DNA Testing Snags Fish Imposters
Aug 24, 2009 8:38 AM CDT

DNA Testing Snags Fish Imposters

Restaurants often swap cheap fish for pricey ones on menu

(Newser) - If you ordered grouper ($12 per pound) at a restaurant, and the chef slipped you catfish ($2.50 per pound) instead, could you tell the difference? Most diners can’t, which is where Mahmood Shivji comes in. Shivji’s a DNA researcher, who’s developed a method of testing the...

DNA Evidence 'Easy to Fake'
 DNA Evidence 'Easy to Fake' 
Aug 18, 2009 4:57 AM CDT

DNA Evidence 'Easy to Fake'

(Newser) - Think DNA evidence is foolproof? In fact, it's so easy to fabricate that "any biology undergrad" could engineer a crime scene, claim scientists in Israel. Raising troubling implications for a legal system that treats DNA as a gold standard, the scientists have demonstrated that DNA samples are vulnerable to...

National Enquirer: Test Proves Edwards Is Baby's Father

(Newser) - A new DNA test proves John Edwards is the father of ex-mistress Rielle Hunter's daughter, the National Enquirer reports. (Yep, it's the Enquirer, but remember they broke news of the affair before any of the mainstream media and forced Edwards into a televised confession.) And it gets worse: Hunter...

Get Your Genome Sequenced for Just $50K

New technology slashes test cost

(Newser) - Decoding the first full human genome cost billions, but a professor of bioengineering says he has done it for just $50,000 using technology he helped design, reports the San Francisco Business Times. Stephen Quake sequenced his genetic code using a team of just three people. Only last year, decoding...

DNA Screening May Help Beat Ovarian Cancer

55% of women carry variant placing them at a higher risk

(Newser) - An international coalition of geneticists has discovered a DNA variant in women with ovarian cancer that could lead to earlier detection and lower mortality rates, reports the Guardian. More than half of women exhibit the genetic trait, which increases the likelihood of ovarian cancer by up to 40%. The researchers...

Eggs Screen Sperm for DNA Quality: Scientists

(Newser) - Some couples are unable to conceive because the woman's eggs screen his sperm for DNA quality and give it a thumbs down, the Independent reports. Scientists in Britain and the US have spotted this "lock-and-key" mechanism in which eggs "read" sperm's DNA, most of which is...

Ethicists Call Foul on Baseball's DNA Testing

(Newser) - Major League Baseball's DNA testing of Latin American rookies has bioethics experts worried, the New York Times reports. League officials say the genetic tests are necessary after a string of cases in which prospects lied about their age or identity, but experts fear the tests may be used to weed...

Mammals Evolve Faster in Hot Weather: Study

Faster metabolism thought to be why

(Newser) - Evolution happens faster in warmer climates, a new study finds. Researchers found that DNA changes more frequently among mammals in the species-rich tropics than among comparable species elsewhere, the BBC reports. Scientists believe the germ cells that become sperm and eggs divide more often in hotter weather, perhaps because those...

Convicts Don't Have Right to Test DNA: Supreme Court

(Newser) - The Supreme Court said today that convicts have no constitutional right to test DNA evidence in hopes of proving their innocence long after they were found guilty of a crime. The court ruled 5-4, with the conservative justices in the majority, against William Osborne, an Alaska man convicted in a...

Women, 56, Discover They Were Switched at Birth

'Swisters' become friends after Oregon hospital's mix-up revealed

(Newser) - Two women's lives have been turned upside down since they discovered they were switched at birth 56 years ago, the East Oregonian reports. Kay Qualls and DeeAnn Shafer—whose parents are now deceased—decided to go for DNA testing last summer after an elderly former neighbor contacted one of the...

Bird Culture Innate: Study
 Bird Culture Innate: Study 

May 4, 2009 2:46 AM CDT

Bird Culture Innate: Study

Isolated finches develop the same song over time

(Newser) - DNA may carry the blueprint for culture, a study of zebra finches has revealed. When raised in isolation, the birds' complex mating song—usually taught by male elders—develops into a harsh clamor. But as their offspring learn the song, they tweak it slightly and recreate the melody within a...

DNA Tests Solve Man's 26-Year Search for His Dad

Testing helped adopted man discover his birth father through his surname

(Newser) - A Michigan man's decades-long search for his biological father was fulfilled with an assist from DNA-based genealogy tests, the Wall Street Journal reports. Richard Hill—who didn't know he was adopted until his adoptive father revealed the truth from his deathbed—discovered his birth mother's identity fairly easily but hit...

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