Category Archives: DNA

Steve Wilkos will this dna test destroy our marriage

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Steve Wilkos will this dna test destroy our marriage - Video

World News Today - DNA Results a Key Piece of Evidence in Amanda Knox Case
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World News Today - DNA Results a Key Piece of Evidence in Amanda Knox Case - Video

VANCOUVER - Researchers at the University of British Columbia have developed a DNA test to catch athletes who use blood doping to enhance their performance, but its limitations mean the current testing system will continue to detect cheaters.

James Rupert, an associate professor in the School of Kinesiology at the University of B.C., said the U.S. Anti-Doping Agency funded research for the DNA test, which was designed to be cheaper, easier and faster than the existing method.

The agency uses a test that examines athletes' blood for proteins to determine if they've received a transfusion of someone else's blood.

Rupert, whose study has been published in the journal Analytical and Bioanalytical Chemistry, said Friday that the UBC test allows DNA to be amplified to a high resolution, which can't be done with proteins.

He said the technology enables white cells to be inspected for different populations of genes and reveal if a second person's cells are present. Red blood cells do not have DNA.

Elite cheats, including admitted blood-doping cyclist Lance Armstrong, aim to boost their red blood cells, which carry oxygen from the lungs to the muscles, and help improve endurance.

However, Rupert said the initial quest was to develop a finger-prick test that could be used by volunteer doping control officers at the Olympics, for example, but it did not work.

He said there are also ethical concerns about collecting genetic data for doping control.

"There may be a bit of a block to collecting athletes' genetic data," he said.

The test may also be limited because of the various tricks athletes use to bypass blood-doping detection such as skimming off white blood cells before the blood is transfused from a donor.

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Researchers develop DNA test to catch doping cheats in elite sports

DNA Extraction HD
DNA Extraction Strawberries Deoxyribonucleic Acid Chemistry Genetics Extract DNA.

By: Charles Walton

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DNA Extraction HD - Video

Cold Justice - Small Town Tragedy - DNA Evidence
After 18 years, the Cold Justice team submits DNA evidence collected in the brutal murder of 29 year-old Mary Anne Holmes. Airing on Tuesdays at 10/9c, COLD ...

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Cold Justice - Small Town Tragedy - DNA Evidence - Video

A British scientist says he may have solved the mystery of the Yeti, the elusive ape-like creature of the Himalayas. DNA analysis conducted by Oxford University genetics professor Bryan Sykes suggests the creature is the descendant of an ancient polar bear.

Sykes compared DNA from hair samples taken from two Himalayan animals -- identified by local people as Yetis -- to a database of animal genomes. He found they shared a genetic fingerprint with a polar bear jawbone found in the Norwegian Arctic that is at least 40,000 years old.

Sykes said Thursday that the tests showed the creatures were not related to modern Himalayan bears but were direct descendants of the prehistoric animal.

"It may be a new species, it may be a hybrid" between polar bears and brown bears," he said. "The next thing is go there and find one."

Sykes put out a call last year for museums, scientists and Yeti aficionados to share hair samples thought to be from the creature.

One of the samples he analyzed came from an alleged Yeti mummy in the Indian region of Ladakh, at the Western edge of the Himalayas, and was taken by a French mountaineer who was shown the corpse 40 years ago.

The other was a single hair found a decade ago in Bhutan, 800 miles to the east. Sykes said the fact the hair samples were found so far apart, and so recently, suggests the members of the species are still alive.

"I can't imagine we managed to get samples from the only two 'snow bears' in the Himalayas," he said.

Finding a living creature could explain whether differences in appearance and behavior to other bears account for descriptions of the Yeti as a hairy hominid.

"The polar bear ingredient in their genomes may have changed their behavior so they act different, look different, maybe walk on two feet more often," he said.

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DNA links mysterious Yeti to ancient bear, scientist claims

Maury: 2 of My Kids Died... Will I Lose Another to DNA? (2008)
J.R. vs. Erica.

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Maury: 2 of My Kids Died... Will I Lose Another to DNA? (2008) - Video

A British geneticist says he may have solved the mystery of the yeti, after matching DNA from two animals said to be the mythical beast to an ancient polar bear.

'We have found an exact genetic match between two samples from the Himalayas and the ancient polar bear,' said Bryan Sykes, emeritus professor at Oxford University, on Thursday.

There have for centuries been legends about hairy, ape-like creatures, also known as 'migoi' in the Himalayas, 'bigfoot' in North America and 'almasty' in the Caucasus mountains.

The myth was given credence when explorer Eric Shipton returned from his 1951 expedition to Everest with photographs of giant footprints in the snow.

Eyewitness accounts have since fuelled speculation that the creatures may be related to humans, but Sykes believes they are likely to be bear hybrids.

He made a global appeal last year for samples from suspected yeti sightings and received about 70, of which 27 gave good DNA results. These were then compared with other animals' genomes stored on a database.

Two hair samples came up trumps - one from a beast shot in the Kashmiri region of Ladakh 40 years ago and the other found in Bhutan a decade ago.

'In the Himalayas, I found the usual sorts of bears and other creatures amongst the collection,' Sykes told BBC radio, ahead of the broadcast of a TV program about his findings.

'But the particularly interesting ones are the ones whose genetic fingerprints are linked not to the brown bears or any other modern bears, (but) to an ancient polar bear.'

The DNA from the Himalayan samples was a 100 per cent match with a sample from a polar bear jawbone found in Svalbard in Norway, dating back between 40,000 and 120,000 years.

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Yeti DNA linked to ancient polar bear

LONDON A British scientist says he may have solved the mystery of the Abominable Snowman the elusive ape-like creature of the Himalayas. He thinks it's a bear.

DNA analysis conducted by Oxford University genetics professor Bryan Sykes suggests the creature, also known as the Yeti, is the descendant of an ancient polar bear.

Sykes compared DNA from hair samples taken from two Himalayan animals identified by local people as Yetis to a database of animal genomes. He found they shared a genetic fingerprint with a polar bear jawbone found in the Norwegian Arctic that is at least 40,000 years old.

Sykes said Thursday that the tests showed the creatures were not related to modern Himalayan bears but were direct descendants of the prehistoric animal.

- Oxford University genetics professor Bryan Sykes

He said, "it may be a new species, it may be a hybrid" between polar bears and brown bears.

"The next thing is go there and find one."

Sykes put out a call last year for museums, scientists and Yeti aficionados to share hair samples thought to be from the creature.

One of the samples he analyzed came from an alleged Yeti mummy in the Indian region of Ladakh, at the Western edge of the Himalayas, and was taken by a French mountaineer who was shown the corpse 40 years ago.

The other was a single hair found a decade ago in Bhutan, 800 miles to the east.

Continued here:
DNA testing suggests elusive Yeti could be a polar bear hybrid roaming the Himalayas

A British scientist says he may have solved the mystery of the Abominable Snowman the elusive ape-like creature of the Himalayas. He thinks it's a bear.

DNA analysis conducted by Oxford University genetics professor Bryan Sykes suggests the creature, also known as the Yeti, is the descendant of an ancient polar bear.

Sykes compared DNA from hair samples taken from two Himalayan animals identified by local people as Yetis to a database of animal genomes. He found they shared a genetic fingerprint with a polar bear jawbone found in the Norwegian Arctic that is at least 40,000 years old.

Sykes said Thursday that the tests showed the creatures were not related to modern Himalayan bears but were direct descendants of the prehistoric animal.

He said, "it may be a new species, it may be a hybrid" between polar bears and brown bears.

"The next thing is go there and find one."

Sykes put out a call last year for museums, scientists and Yeti aficionados to share hair samples thought to be from the creature.

One of the samples he analyzed came from an alleged Yeti mummy in the Indian region of Ladakh, at the Western edge of the Himalayas, and was taken by a French mountaineer who was shown the corpse 40 years ago.

The other was a single hair found a decade ago in Bhutan, 800 miles (1,300 kilometers) to the east.

Sykes said the fact the hair samples were found so far apart, and so recently, suggests the members of the species are still alive.

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DNA Links Mysterious Yeti to Ancient Polar Bear