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image: Messing with HIV

Messing with HIV

By | June 1, 2012

Sangamo Biosciences is putting a different spin on gene therapy. 


image: Spot the Moth

Spot the Moth

By | May 1, 2012

It’s a well-known story: The peppered moth’s ancestral typica phenotype is white with dark speckles. 


image: Telomere Basics

Telomere Basics

By | May 1, 2012

Telomeres are repetitive, noncoding sequences that cap the ends of linear chromosomes. They consist of hexameric nucleotide sequences (TTAGGG in humans) repeated hundreds to thousands of times. 


image: A Whiff of TB

A Whiff of TB

By | March 1, 2012

Chemical ecologist Max Suckling at the Institute for Plant and Food Research Ltd., and summer student Rachael Sagar use Pavlovian conditioning to train bees to stick out their tongues, or proboscises, at the scent of odors produced by tuberculosis-causing bacteria.


image: How Drugs Interact with a Baby’s Parts

How Drugs Interact with a Baby’s Parts

By | March 1, 2012

A lot changes in a child’s body over the course of development, and not all changes occur linearly: gene expression can fluctuate, and organs can perform different functions on the way to their final purpose in the body. Here are some of the key deve


image: Suspected Effects of Vitamin D

Suspected Effects of Vitamin D

By | March 1, 2012

Vitamin D has a variety of actions in the body. It binds to the vitamin D receptor (VDR), which then binds to the retinoid X receptor (RXR) and activates the expression of numerous genes. 


image: Calcium and the Pancreas

Calcium and the Pancreas

By | February 1, 2012

Normal pancreatic function depends on the precise flow of calcium within and into the acinar cells of the organ. 


image: Nari's Shark Bite

Nari's Shark Bite

By | December 1, 2011

In February 2009, a bottlenose dolphin named Nari swam up to the Tangalooma Wild Dolphin Resort on Moreton Island off Australia’s Queensland. 


image: One-Eyed Shark

One-Eyed Shark

By | October 19, 2011

This is not an ancient one-eyed species, but an animal suffering from a rare congenital condition known as cyclopia, which has been documented in a variety of species, including humans. 


Saving Rwanda's Gorillas

By | October 1, 2011

In late June 2009, a small group of mountain gorillas in Rwanda’s Volcanoes National Park began to fall ill. One by one, 11 of the dozen apes started exhibiting severe respiratory problems. 


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