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image: Week in Review: May 19–23

Week in Review: May 19–23

By | May 23, 2014

Sperm-sex–sensing sows; blocking a pain receptor extends lifespan in mice; stop codons can code for amino acids; exploring the tumor exome

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image: When Stop Means Go

When Stop Means Go

By | May 22, 2014

A survey of trillions of base pairs of microbial DNA reveals a considerable degree of stop codon reassignment.

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image: Ancient Life in the Information Age

Ancient Life in the Information Age

By | March 1, 2014

What can bioinformatics and systems biology tell us about the ancestor of all living things?

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image: Contributors

Contributors

By | March 1, 2014

Meet some of the people featured in the March 2014 issue of The Scientist.

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image: Epigenetic Enigmas

Epigenetic Enigmas

By | October 17, 2012

Overturning previous studies, a peculiar protozoan mysteriously uses a DNA-markup system to take out the genetic trash.   

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Volcanic origin of proteins?

By | March 21, 2011

The reanalysis of a 1958 experiment suggests that volcanic eruptions may have spawned the amino acids that contributed to the rise of life on earth

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The Fast Track to Success

By | November 1, 2006

Laura Landweber was 33 when she received tenure at Princeton. Oxytricha, beware: She's got a lot of science ahead of her.

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Clarification

May 12, 1997

In the article "Scientists Debate RNA's Role At Beginning Of Life On Earth" (R. Lewis, The Scientist, March 31, 1997) on page 14, the following comments should have been attributed to Laura Landweber, an assistant professor of ecology and evolutionary biology at Princeton University: "The ability to isolate new ribozymes from random sequences has fueled a new excitement about the possibility of uncovering early pathways of RNA evolution. Ultimately, this will make the world of possible primordi

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Mettler Toledo
BD Biosciences
BD Biosciences