AFP Photo / Pascal Guyot US scientists have discovered an internal clock in our DNA that could measure the biological age of organs or cancer cells while helping researchers discover ways to slow down the aging process. The internal mechanism shows that different parts of our body age faster or slower, according to a study published […]
Chemists from North Carolina State University have performed a DNA-based logic-gate operation within a human cell. The research may pave the way to more complicated computations in live cells, as well as new methods of disease detection and treatment.
Swiss researchers have discovered the impact of a longevity gene in mice, crucial in unlocking the riddle of aging, and subsequently extended the life-span of worms by 60% through basic antibiotic treatment. The goal of the research by the Ecole Polytechnique Federale de Lausanne (EPFL) and which was published in the scientific journal Nature was […]
A new type of flame-retardant coating for textiles has been developed from a most unlikely source. Researchers from Italy have used DNA, extracted from herring sperm, to fireproof samples of cotton, and have found its performance to be on a par with commercially manufactured materials.
by Marco Torres, The human genome is packed with millions of gene switches that reside in bits of DNA that once were dismissed as “junk” but it turns out that so-called junk DNA plays critical roles in controlling how cells, organs and other tissues behave. Cambridge researchers have published a paper proving that four-stranded ‘quadruple helix’ DNA […]
by Chris Renzo, American neuroscientist, Dr. Robert Sapolsky, states that there is a widespread and dangerous notion that has taken root in our dominant scientific understanding of human behavior. The notion is that we believe human behavior is genetically determined. This deterministic view of life suggests life is rooted in biology and genetics, that we are […]
10 January 2013 Laura Howes The field of molecular machines has taken a new bio-inspired turn to assemble another molecule, in this case linking up individual amino acids into a peptide. While this molecular peptide synthesiser isn’t going to rival a ribosome for speed any time soon, it does suggest a way to make multicomponent […]
Annalee Newitz Celebrated geneticist James Watson, one of several researchers who won the Nobel Prize for discovering the structure of DNA, has just published what can only be called a cancer manifesto in Open Biology. It’s full of fairly harsh criticisms for current cancer researchers, but also suggests several ways forward in the “war on cancer.” Among […]
We may never have our flying cars, but the future is here. From creating fully functioning artificial leaves to hacking the human brain, science made a lot of breakthroughs this year.
Paul Andersen describes the molecular structure of DNA. He describes the major parts of a nucleotide and explains how they are assembled into a nucleic acid. The nitrogenous base, deoxyribose sugar and phosphate group make up a single nucleotide. The 5′ and 3′ end of DNA is described. The importance of hydrogen bonds in the […]
This is a Biology Video made to help students gain a greater understanding about Cells and DNA. Mr. stehle Extracts DNA from a strawberry.
21 December 2012 Laura Howes It might look like a pink gloopy liquid to begin with but when you pour Dan Lou’s DNA hydrogel into water it spontaneously reforms into its original shape. Even the Cornell researchers aren’t exactly sure why their new material does what it does, but the potential applications are causing excitement. […]