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image: Arsenic-based life debate continues

Arsenic-based life debate continues

By | June 2, 2011

More than a dozen researchers voice their concerns about a 2010 paper that claims bacteria can use arsenic in place of phosphorus in its DNA and other biomolecules, such as proteins.

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image: What lab mice are made of

What lab mice are made of

By | June 2, 2011

The most detailed genetic maps to date of classical lab mouse strains reveal limited genetic diversity and overwhelmingly originate from a single species of domestic mouse, the researchers report.

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image: The Last Vaccine Frontier

The Last Vaccine Frontier

By | June 1, 2011

Successful vaccines have been created to protect against pathogenic bacteria and viruses. Why aren’t there any for combating fungal infections?

3 Comments

image: Recognizing the Human Potential

Recognizing the Human Potential

By | June 1, 2011

It may be time to reconsider an AIDS vaccine which is more human than viral, triggering the immune system in a way that no other vaccine does.

12 Comments

image: An Insoluble Problem?

An Insoluble Problem?

By | May 26, 2011

The challenges of crystallizing membrane proteins—and how they’re being overcome.

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image: Speaking of Science

Speaking of Science

By | May 26, 2011

May 2011's selection of notable quotes

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image: Making the Gradient

Making the Gradient

By | May 25, 2011

Ron Kaback didn’t believe that electrochemical gradients could power the transport of sugars and amino acids across cell membranes—until he proved that they do.

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image: Andrew Carter: Dynein Trailblazer

Andrew Carter: Dynein Trailblazer

By | May 25, 2011

Group Leader, Laboratory of Molecular Biology, Medical Research Council. Age: 36

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image: How zebrafish regrow limbs

How zebrafish regrow limbs

By | May 19, 2011

Because of their ability to differentiate into any cell type, stem cells have been thought to play an important role in limb regeneration processes. 

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image: Gays have higher cancer risk?

Gays have higher cancer risk?

By | May 14, 2011

Gay men are nearly twice as likely to report that they've had cancer as heterosexual men, according to a US health survey published in Cancer.

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