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News tagged with nucleotide

Genome provides new weapon against sea lice

An international team of researchers has now sequenced nearly the entire genetic material of the sea louse. On 1 March the Institute of Marine Research gave the world open access to this research source, which ...

Biology / Biotechnology

created May 29, 2012 | popularity not rated yet | comments 0

RNA reactor could have served as a precursor of life

(PhysOrg.com) -- Nobody knows quite how life originated on Earth, but most scientists agree that living cells did not abruptly appear from nonliving cells in a single step. Instead, there were probably a series ...

Physics / General Physics

created Jul 11, 2011 | popularity 4.7 / 5 (27) | comments 103 | with audio podcast feature

In cod we trust: DNA test combats fisheries fraud

Scientists on Tuesday said they had devised a DNA test to pinpoint the geographical origins of commercial seafish, in a breakthrough against illegal trawling that threatens fish stocks worldwide.

Biology / Biotechnology

created May 22, 2012 | popularity not rated yet | comments 0

Scientists Build Nanostructures out of Single DNA Strands

(PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures could ...

Nanotechnology / Bio & Medicine

created Sep 08, 2009 | popularity 5 / 5 (4) | comments 5 feature

Two-step technique makes graphene suitable for organic chemistry

The future brightened for organic chemistry when researchers at Rice University found a highly controllable way to attach organic molecules to pristine graphene, making the miracle material suitable for a ...

Nanotechnology / Nanomaterials

created Nov 29, 2011 | popularity 4.8 / 5 (8) | comments 4 | with audio podcast

Friendship may have a genetic component

(PhysOrg.com) -- New research suggests groups of friends may have common genetic patterns. Social scientist Professor James Fowler of the University of California, San Diego, came to this conclusion after ...

Medicine & Health / Genetics

created Jan 18, 2011 | popularity 4.6 / 5 (14) | comments 6 | with audio podcast report

lobSTR algorithm rolls DNA fingerprinting into 21st century

As any crime show buff can tell you, DNA evidence identifies a victim's remains, fingers the guilty, and sets the innocent free. But in reality, the processing of forensic DNA evidence takes much longer than a 60-minute primetime ...

Biology / Biotechnology

created Apr 27, 2012 | popularity 4.7 / 5 (7) | comments 0 | with audio podcast

Seeing without eyes: Hydra stinging cells respond to light

In the absence of eyes, the fresh water polyp, Hydra magnipapillata, nevertheless reacts to light. They are diurnal, hunting during the day, and are known to move, looping end over end, or contract, in res ...

Biology / Plants & Animals

created Mar 04, 2012 | popularity 4.6 / 5 (5) | comments 1 | with audio podcast

Tiny reader makes fast, cheap DNA sequencing feasible

Researchers have devised a nanoscale sensor to electronically read the sequence of a single DNA molecule, a technique that is fast and inexpensive and could make DNA sequencing widely available.

Nanotechnology / Bio & Medicine

created Mar 26, 2012 | popularity 5 / 5 (11) | comments 0 | with audio podcast

Powerful genome barcoding system reveals large-scale variation in human DNA

(PhysOrg.com) -- Genetic abnormalities are most often discussed in terms of differences so miniscule they are actually called "snips" — changes in a single unit along the 3 billion that make up the entire string of human ...

Medicine & Health / Genetics

created May 31, 2010 | popularity 4.9 / 5 (16) | comments 2 | with audio podcast

We are all mutants: Measurement of mutation rate in humans by direct sequencing

An international team of 16 scientists today reports the first direct measurement of the general rate of genetic mutation at individual DNA letters in humans. The team sequenced the same piece of DNA - 10,000,000 or so letters ...

Medicine & Health / Genetics

created Aug 27, 2009 | popularity 4.6 / 5 (8) | comments 8

Researchers discover RNA repair system in bacteria

In new papers appearing this month in Science and the Proceedings of the National Academy of Sciences, University of Illinois biochemistry professor Raven H. Huang and his colleagues describe the first RNA repair system to be ...

Biology / Cell & Microbiology

created Oct 12, 2009 | popularity 4.7 / 5 (6) | comments 0

Genetic heritability may be hidden deeper than previously thought

(PhysOrg.com) -- Geneticists trying to find a link between the genes and traits such as height have until recently found genetic variants that account for only around 5% of the heritability of these traits. ...

Medicine & Health / Genetics

created Jun 21, 2010 | popularity 4.8 / 5 (12) | comments 3 | with audio podcast report

Scientists create novel RNA repair technology

Scientists from the Florida campus of The Scripps Research Institute have identified a compound that can help repair a specific type of defect in RNA, a type of genetic material. The methods in the new study could accelerate ...

Chemistry / Biochemistry

created Jan 18, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

The language of RNA decoded: Study reveals new function for pseudogenes and noncoding RNAs

The central dogma of molecular biology, as proposed in 1970 by Francis Crick and James Watson, holds that genetic information is transferred from DNA to functional proteins by way of messenger RNA (mRNA). This suggests that ...

Medicine & Health / Medical research

created Jun 23, 2010 | popularity 5 / 5 (11) | comments 0 | with audio podcast

Nucleotide

Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. Additionally, nucleotides play central roles in metabolism. In that capacity, they serve as sources of chemical energy (adenosine triphosphate and guanosine triphosphate), participate in cellular signaling (cyclic guanosine monophosphate and cyclic adenosine monophosphate), and are incorporated into important cofactors of enzymatic reactions (coenzyme A, flavin adenine dinucleotide, flavin mononucleotide, and nicotinamide adenine dinucleotide phosphate).

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