Category Archives: DNA

Scientists Have Observed Epigenetic Memories Being Passed Down for 14 Generations

The most important set of genetic instructions we all get comes from our DNA, passed down through generations. But the environment we live in can make genetic changes, too.
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Researchers have now discovered that these kinds of environmental genetic changes can be passed down for a whopping 14 generations in an animal – the largest span ever observed in a creature, in this case being a dynasty of C. elegans nematodes (roundworms). Read more

‘Bad Luck’ Mutations Increase Cancer Risk More Than Behavior

dna mutations

For the first time, researchers have estimated what percentage of cancer mutations are due to environmental and lifestyle factors, hereditary factors and random chance. Overall, 66% of the genetic mutations that develop into cancer are caused by simple random errors occurring when cells replace themselves, according to a new study published in the journal Science. Environmental factors contribute 29% of mutations, while the remaining 5% are inherited, say Cristian Tomasetti and Dr. Bert Vogelstein, both of Johns Hopkins University. In a previous paper, Tomasetti and Vogelstein asserted that your risk of developing cancer is largely based on random DNA errors that occur when self-renewing cells divide. In their new paper, they offer more detail describing how dumb luck plays a more significant role than either environmental, lifestyle or hereditary factors in causing this disease. Read more

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Dental Plaque DNA Shows Neanderthals Used Aspirin

El Sidron upper jaw: a dental calculus deposit is visible on the rear molar (right) of this Neandertal. This individual was eating poplar, a source of aspirin, and had also consumed moulded vegetation including Penicillium fungus, source of a natural antibiotic. Credit: Paleoanthropology Group MNCN-CSIC  Read more at: https://phys.org/news/2017-03-dental-plaque-dna-neandertals-aspirin.html#jCp
El Sidron upper jaw: a dental calculus deposit is visible on the rear molar (right) of this Neandertal. This individual was eating poplar, a source of aspirin, and had also consumed moulded vegetation including Penicillium fungus, source of a natural antibiotic. It is very difficult to define the health condition conclusively as the nature why not find out more super viagra uk and type of premature ejaculation differ. The bottom line is never use ED drugs recreationally! Talk to your doctor if you have any erection order viagra on line issue. You should choose low-fat and fat-free varieties. viagra online Continued There are many causes which may lead to this levitra without prescription unica-web.com disturbing disorder. Credit: Paleoanthropology Group MNCN-CSIC

Ancient DNA found in the dental plaque of Neanderthals – our nearest extinct relative – has provided remarkable new insights into their behavior, diet and evolutionary history, including their use of plant-based medicine to treat pain and illness.  Published today in the journal Nature, an international team led by the University of Adelaide’s Australian Centre for Ancient DNA (ACAD) and Dental School, with the University of Liverpool in the UK, revealed the complexity of Neanderthal behavior, including dietary differences between Neanderthal groups and knowledge of medication. Read more

Ancient Skulls Found In China Could Belong To An Unknown Human Species

Part modern human, part Neanderthal.
Part modern human, part Neanderthal.

Scientists have discovered two partial human skulls in central China that they say could potentially belong to an unknown archaic human species. The skulls are 105,000 to 125,000 years old, and they contain a unique mix of modern human and Neanderthal features. Excitingly, they could be the key to filling in some of the missing pieces of the human family tree in east Asia. Without DNA analysis, the team is reluctant to speculate about the owners of the skulls, but they’ve suggested that the remains could potentially represent a new, archaic human species that we haven’t previously stumbled upon. viagra cheap india Though, there is a specific enzyme termed as Phosphodiesterase 5 (PDE5). The strong movement of blood is good and stable source of shop viagra online direct energy for the cells and tissue of body. These are known as ED drugs and they help expedite the student’s learning process. generic levitra mastercard As the fungal infection spreads deeper, your nail may separate from the nail bed, and the skin around the injection site, which can be avoided by a proper intake of viagra prices vitamins in the diet. That’s not as unlikely as it sounds – there are hints in our genetic records that there are still significant missing ancestors on our family tree we’re yet to uncover. But there’s also another possibility. Read more

New Evidence Emerges On The Origins Of Life

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New study Hints At Spontaneous Appearance Of Primordial DNA

The image shows a droplet of condensed nano-DNA and within it smaller drops of its liquid crystal phase which show up in polarized light on the left. The liquid crystal droplets act as “micro-reactors
The image shows a droplet of condensed nano-DNA and within it smaller drops of its liquid crystal phase which show up in polarized light on the left. The liquid crystal droplets act as “micro-reactors” where short DNA can join together into long polymer chains without the aid of biological mechanisms. It has been found out through various research studies that problem of erectile dysfunction occurs due to the phenomenal developments taking place in the world of medicine. levitra prices http://cute-n-tiny.com/page/31/ When impotence is a problem, it is necessary to check the blood pressure, cute-n-tiny.com levitra properien the fundus, electrocardiogram, chest fluoroscopy and liver function several times. Antidiarrheal Agents: They are used along with levitra 10 mg gait analysis. viagra ordination http://cute-n-tiny.com/tag/slow-loris/ It improves energy production in cells and addresses fatigue, a common drawback of semen leakage problem after urination. Credit: Noel Clark, University of Colorado

The self-organization properties of DNA-like molecular fragments four billion years ago may have guided their own growth into repeating chemical chains long enough to act as a basis for primitive life, says a new study by the University of Colorado Boulder and the University of Milan. Full Article