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C. elegans Can Pass a Trait Down for 100 Generations…Without #DNA ! Mysteries of the #Universe

C. elegans Can Pass a Trait Down for 100 Generations…Without #DNA ! Mysteries of the #Universe | Limitless learning Universe | Scoop.it

C. elegans worms whose grandparents had the ability to fight viruses using a fleet of tiny RNA molecules retain these molecules even when they don’t have the genes for them. They can pass these molecules down for more than a hundred generations.

 

A research team engineered worms that didn’t have the genes to make the RNAs—which work by inhibiting the virus replication machinery—and then bred them with worms that did for several generations. They ended up with some worms whose ancestors had had the virus-fighting molecules, but did not themselves possess the necessary genes. The team then watched these worms under the microscope and saw that they still attacked viruses in exactly the same way as their grandparents.

 

Numerous control experiments confirmed that the effect was real, and only happened in worms who had ancestors with the genes. The researchers collected all the various RNA molecules in these worms and saw that indeed, they possessed the virus-fighting variety.After about three generations, the effect seemed to wear off; most worms without the genes stopped being able to attack viruses. But for some worms, it never stopped. The team bred those worms for more than one hundred generations, nearly a year, and the creatures never flagged in their ability to defend themselves.

 

How is this possible? The team keeps mum on any ideas of how this inheritance works. But they do uncover some tantalizing details that give us room for speculation. One possibility is that the RNA molecules made by the original worms in response to a virus attack were floating around in the cytoplasm of the eggs and sperm that became their offspring. If that’s the case, then the offspring are basically using their parents’ leftovers, with each generation having a bit less of the original stuff.

 

The researchers mention this possibility of the original RNA being “diluted” with each generation, but don’t, as far as we can tell, try to test that.But what about the worms that hang on to the RNA indefinitely? The researchers found that for that to happen, a particular enzyme that builds RNAs has to be present. Maybe, then, these worms manage to jerry-rig a way to make copies of the virus-fighting RNA with that enzyme (which isn’t part of the usual machinery), even though they lack the gear required to make it in the normal fashion. The gene for that enzyme would then be passed on as normal.


Via Sakis Koukouvis, Dr. Stefan Gruenwald, CineversityTV
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#Scientists Discover How to Create Matter from Pure Light: #Science Fiction Turns into Fact

#Scientists Discover How to Create Matter from Pure Light: #Science Fiction Turns into Fact | Limitless learning Universe | Scoop.it
Creating matter from light? It sounds like something out of science fiction, right? Well scientists have managed to take something that seems improbable and devise an experiment to make it possible.
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#Science Has Finally Figured Out The Real Reasons We Need To Sleep, And It's Kind Of Shocking

#Science Has Finally Figured Out The Real Reasons We Need To Sleep, And It's Kind Of Shocking | Limitless learning Universe | Scoop.it
We all know that it's impossible to stay awake forever, but we really never knew why. Let's see what science has just revealed. | From mostviralfeed
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Unpacking the #Science: How Playing Music Changes the Learning #Brain

Unpacking the #Science: How Playing Music Changes the Learning #Brain | Limitless learning Universe | Scoop.it
Researchers in the fairly new field of music neuroscience are finding that kids who learn to play a musical instrument also develop important skills related to literacy, math and mental focus.
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Is #Islam Hostile to #Science? NO! We learned from the Arabic culture!

Is #Islam Hostile to #Science? NO! We learned from the Arabic culture! | Limitless learning Universe | Scoop.it
In the 11th and 12th centuries, Muslim scientists were way ahead of contemporaries in Christian Europe.
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System to turn wastewater into fresh water developed #science

System to turn wastewater into fresh water developed #science | Limitless learning Universe | Scoop.it
A professor has shown that improving wastewater treatment and saving energy are not only essential, but they’re also compatible.

Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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#Xeroxed gene may have paved the way for large human brain - #Science AAAS

#Xeroxed gene may have paved the way for large human brain - #Science  AAAS | Limitless learning Universe | Scoop.it
Mice with gene develop primatelike folds in their brains
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Science Shows How Drummers' Brains Are Actually Different From Everybody Elses' #science #music

Science Shows How Drummers' Brains Are Actually Different From Everybody Elses' #science #music | Limitless learning Universe | Scoop.it
Their brains are in an artistic league of their own.
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Stem cells from wisdom teeth could help repair corneas #science

Stem cells from wisdom teeth could help repair corneas #science | Limitless learning Universe | Scoop.it
A study points to a potential new treatment for corneal blindness: Stem cells extracted from pulp from pulled wisdom teeth.
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82 Percent of Patients Managed to Avoid Root Canals Using These Ancient Medicinal #Herbs #dentist

82 Percent of Patients Managed to Avoid Root Canals Using These Ancient Medicinal #Herbs #dentist | Limitless learning Universe | Scoop.it
Is it really possible to reverse the need for a root canal or a tooth [...]
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Meteorite is 'hard drive' from space #science

Meteorite is 'hard drive' from space #science | Limitless learning Universe | Scoop.it
Researchers have decoded ancient recordings from fragments of an asteroid dating back billions of years to the start of the Solar System.
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Evolving a bigger brain with human DNA

Evolving a bigger brain with human DNA | Limitless learning Universe | Scoop.it
The human brain expanded dramatically in size during evolution, imparting us with unique capabilities.

Via Dr. Stefan Gruenwald
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Newborn neurons in the adult #brain may help us adapt to the environment - Medical #science

Newborn neurons in the adult #brain may help us adapt to the environment - Medical #science | Limitless learning Universe | Scoop.it
The discovery that the human brain continues to produce new neurons in adulthood challenged a major dogma in the field of neuroscience, but the role of these neurons in behavior and cognition is still not clear.
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#MIT researchers claim they have a way to make faster chips #tech

#MIT researchers claim they have a way to make faster chips #tech | Limitless learning Universe | Scoop.it
A team of MIT researchers have discovered a possible way to make multicore chips a whole lot faster than they currently are, according to a recently published research paper. The researchers’…
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Scientists take the first ever photograph of #light as both a wave and a particle #science

Scientists take the first ever photograph of #light as both a wave and a particle #science | Limitless learning Universe | Scoop.it
RT @zaibatsu: Scientists take the first ever photo of light as both a wave and a particle: http://t.co/TBIT747T6u #science http://t.co/zJGX…;
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Archaeologists discover ruins that may be the lost ‘City of the Monkey God’ — which ‘must never be found’

Archaeologists discover ruins that may be the lost ‘City of the Monkey God’ — which ‘must never be found’ | Limitless learning Universe | Scoop.it
Archaeologists believe they have found the fabled “White City” – the “City of the Monkey God.” The city was built in Honduras by a vanished culture so little studied that archaeologists have not named the ancient civilization.
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High level of #pesticides, #toxins and heavy metals in foods, superfoods and #herbs imported from #China

High level of #pesticides, #toxins and heavy metals in foods, superfoods and #herbs imported from #China | Limitless learning Universe | Scoop.it
High level of pesticides, toxins and heavy metals in foods, superfoods and herbs imported from China and China says that 60% of its groundwater and one fifth of farm lands are polluted
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#Ancient Egyptian Scrolls Document Natural #Herbs and Holistic #Medicine That Saved Lives and Cured Disease

#Ancient Egyptian Scrolls Document Natural #Herbs and Holistic #Medicine That Saved Lives and Cured Disease | Limitless learning Universe | Scoop.it
Egyptian medicine is some of the oldest ever documented. From the 33rd century BC until the Persian invasion in 525 BC, Egyptian medical practice remained consistent in its highly advanced methods for the time.
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A Star Passed Through the Solar System Just 70,000 Years Ago #science

A Star Passed Through the Solar System Just 70,000 Years Ago #science | Limitless learning Universe | Scoop.it
Astronomers have reported the discovery of a star that passed within the outer reaches of our Solar System just 70,000 years ago, when early humans were beginning to take a foothold here on Earth. ...

Via Dr. Stefan Gruenwald
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First biological proof that #ME is real found by scientists #science #biology

First biological proof that #ME is real found by scientists  #science #biology | Limitless learning Universe | Scoop.it
Columbia University has found that changes to the immune system represent ‘the first robust physical evidence’ that ME is a biological illness rather than a psychological disorder
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Gigantic Black Hole Discovered From the Dawn of Time #science

Gigantic Black Hole Discovered From the Dawn of Time #science | Limitless learning Universe | Scoop.it
Astronomers struggle to explain how a gigantic black hole could have appeared less than a billion years after the big bang.
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New #NASA model gives glimpse into the invisible world of electric #asteroids

New #NASA model gives glimpse into the invisible world of electric #asteroids | Limitless learning Universe | Scoop.it
Space may appear empty -- a soundless vacuum, but it's not an absolute void. It flows with electric activity that is not visible to our eyes.
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US sea level rise 'very unusual' #climate #science

US sea level rise 'very unusual' #climate #science | Limitless learning Universe | Scoop.it
Sea levels along the northeast coast of the US rose dramatically during 2009-2010 in an event scientists describe as "very unusual".
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Scan reveals 1,000-year-old monk seated inside of #Buddha statue #science

Scan reveals 1,000-year-old monk seated inside of #Buddha statue #science | Limitless learning Universe | Scoop.it
Using CT scanning technology and using an endoscope, researchers at Meander Medical Center in the Netherlands have been able to identify the body of a Buddhist monk encased inside of a 1,000-year-old Buddha statue, according to Colossal.
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'We are not anti-#science': Mothers defend right to not vaccinate children #vaccins #health

'We are not anti-#science': Mothers defend right to not vaccinate children #vaccins #health | Limitless learning Universe | Scoop.it
As some anti-vaccine parents fear recent measles backlash, a handful of mothers explain why they remain skeptical and unmoved by criticism
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New and improved Large Hadron Collider ready to do #science again

New and improved Large Hadron Collider ready to do #science again | Limitless learning Universe | Scoop.it
CERN researchers hope the upgraded LHC, set to resume scientific work in March, can help them confirm the existence of "dark matter" particles.
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#Science Is Proving Some Memories Are Passed Down From Our Ancestors #Gaya

#Science Is Proving Some Memories Are Passed Down From Our Ancestors #Gaya | Limitless learning Universe | Scoop.it
Recent studies have provided evidence that memories of fear are one of many things our forebearers pass down to us through our DNA.
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