Biology

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How Big is a ... ?

Download this and other animations for a single user or for an entire classroom . HowBig is also available as a ready-to-use PowerPoint® Slide Presentation . How to use: Use the left and right arrows to change magnification. Click on the magnifications (1, 10, 100...) for a "Power of Ten" zoom. Choose an individual cell or organism (right) to bring it into view. http://www.cellsalive.com/howbig.htm
http://www.cbc.ca/news/technology/story/2012/04/13/science-antibiotic-resistant-bacteria.html

Ancient antibiotic-resistant bacteria found in isolated cave - Technology & Science

The samples were collected from a part of Lechuguilla Cave in Carlsbad Cavern National Park in New Mexico that has been cut off from any input from the surface for four million to seven million years.
http://www.bbc.co.uk/nature/17953792

BBC Nature - Dinosaur gases 'warmed the Earth'

7 May 2012 Last updated at 10:43 By Ella Davies Reporter, BBC Nature
Quantum Biology

Evolution

Plant Communication

New Genetic Twist: 4-Stranded DNA Lurks in Human Cells

Sixty years after scientists described the chemical code of life — an interweaving double helix called DNA — researchers have found four-stranded DNA is also lurking in human cells. The odd structures are called G-quadruplexes because they form in regions of deoxyribonucleic acid (DNA) that are full of guanine, one of the DNA molecule's four building blocks, with the others being adenine, cytosine, thymine. http://www.livescience.com/26515-4-stranded-dna-human-cells.html

Fractal Globules in DNA : FractalFoundation.org

Researchers have discovered how the DNA is packed into our cells in such a way that the roughly 2 meters of DNA in each cell doesn’t tangle, and is easily accessible when it’s needed to make proteins. http://fractalfoundation.org/2009/11/fractal-globules-in-dna/
Jan. 24, 2013 — New research reveals a potential way for how parents' experiences could be passed to their offspring's genes. The research was published January, 25 in the journal Science . Epigenetics is a system that turns our genes on and off. http://www.sciencedaily.com/releases/2013/01/130124150808.htm

Scientists discover how epigenetic information could be inherited: Mechanism of epigenetic reprogramming revealed

Now scientists have discovered a vital clue to unraveling these riddles. The human genome is packed with at least four million gene switches that reside in bits of DNA that once were dismissed as “junk” but that turn out to play critical roles in controlling how cells, organs and other tissues behave. The discovery, considered a major medical and scientific breakthrough, has enormous implications for human health because many complex diseases appear to be caused by tiny changes in hundreds of gene switches.

Far From ‘Junk,’ DNA Dark Matter Proves Crucial to Health

http://www.nytimes.com/2012/09/06/science/far-from-junk-dna-dark-matter-proves-crucial-to-health.html?pagewanted=all

ATP synthase | Mitochondrial Biology Unit

Selected publications Baker, L.
Most bacterial infections can be treated with antibiotics such as penicillin, discovered decades ago.

New drug could cure nearly any viral infection

Oct. 28, 2012 — Researchers have learned how a synthetic molecule destroys complexes that induce allergic responses -- a discovery that could lead to the development of highly potent, rapidly acting interventions for a host of acute allergic reactions. The study, published online Oct. 28 in Nature , was led by scientists at the Stanford University School of Medicine and the University of Bern, Switzerland.

Mechanism found for destruction of key allergy-inducing complexes, researchers say

A little-known plant with a truly bizarre name is now making headlines as a cancer killer, with the compound of the plant vanishing tumors in mice with pancreatic cancer.

CHINESE PLANT COMPOUND WIPES OUT CANCER IN 40 DAYS, SAYS NEW RESEARCH