News tagged with nucleotides

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

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

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

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

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

New method pinpoints important gene-regulation proteins

A novel technique has been developed and demonstrated at Penn State University to map the proteins that read and regulate chromosomes -- the string-like structures inside cells that carry genes. The specific ...

Biology / Cell & Microbiology

created Jan 18, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

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

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

Biologists uncover a novel cellular proofreading mechanism

(PhysOrg.com) -- To make proteins, cells assemble long chains of amino acids, based on genetic instructions from DNA. That construction takes place in a tiny cellular structure called a ribosome, to which amino acids are ...

Biology / Cell & Microbiology

created Nov 11, 2011 | popularity 4.8 / 5 (5) | comments 0 | with audio podcast

We are not only eating 'materials', we are also eating 'information'

In a new study, Chen-Yu Zhang's group at Nanjing university present a rather striking finding that plant miRNAs could make into the host blood and tissues via the route of food-intake. Moreover, once inside the host, they ...

Biology / Cell & Microbiology

created Sep 19, 2011 | popularity 4.8 / 5 (8) | comments 4

Largest rice genetics study finds vast differences in rice

The largest publicly available genomewide association mapping study in rice to date has found that although the five subpopulations of Asian rice -- indica, aus, temperate japonica, aromatic and tropical ...

Biology / Biotechnology

created Sep 15, 2011 | popularity 4 / 5 (1) | comments 2 | with audio podcast

Researchers develop new strategy to uncover structural variations of human genomes

The study on single-nucleotide resolution structural variations (SVs) of an Asian and African genome was published online in Nature Biotechnology. This study was performed by BGI (previously known as the Beijing Genomics Institute), ...

Biology / Biotechnology

created Jul 25, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

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

Evolution and domestication of seed structure shown to use same genetic mutation

For the first time, scientists have identified a mutation in plants that was selected twice - during both natural evolution and domestication.

Biology / Biotechnology

created Jul 07, 2011 | popularity not rated yet | comments 0

Versatility of stem cells controlled by alliances, competitions of proteins

Like people with a big choice to make, stem cells have a process to "decide" whether to transform into a specific cell type or to stay flexible, a state that biologists call "pluripotency." Using a technology he invented, ...

Biology / Biotechnology

created Apr 27, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Nucleotide

Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. In addition, nucleotides participate in cellular signaling (cGMP and cAMP), and are incorporated into important cofactors of enzymatic reactions (coenzyme A, FAD, FMN, and NADP+). Nucleotide derivatives such as the nucleoside triphosphates play central roles in metabolism, in which capacity they serve as sources of chemical energy (ATP and GTP).

For more information about Nucleotide, read the full article at Wikipedia.
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