The killer read his Bible. He drank. Heavily. It was a fall night in 2006, when Bradley Waldroup walked out of his rural trailer in southeastern Tennessee, carrying his .22 caliber hunting rifle. His estranged wife and her friend, Leslie Bradshaw, had just pulled up to drop off the Waldroups’ four children. Waldroup began arguing with his wife and Bradshaw, who was unloading the car. Drawing his gun, Waldroup shot Bradshaw eight times, killing her. He used a knife to cut her head open.
Researchers from Temple University have used the CRISPR/Cas9 gene editing tool to clear out the entire HIV-1 genome from a patient’s infected immune cells. It’s a remarkable achievement that could have profound implications for the treatment of AIDS and other retroviruses.
In a landmark decision more than two decades in the making, the US Food and Drug Administration announced its approval of a genetically modified Atlantic Salmon variant on Thursday. The AquAdvantage salmon, which was initially developed back in 1989 and submitted for approval in 1995, grows far faster than its conventionally bred brethren. The FDA has deemed it safe for human consumption, equally nutritious as other salmon varieties and not dangerous to the environment. And since the GMO salmon is considered nutritionally equivalent to regular salmon supermarkets will be able to carry the fish without having to label them being GMO.
In the 150 years since Charles Darwin recognised the kinship of all life, scientists have worked to fulfil his dream of a complete Tree of Life. Today, the methods used to trace the evolutionary branches back through time would exceed Darwin’s expectations. Scientists across a range of biological disciplines use a technique called the molecular clock, where the past is deciphered by reading the stories written in the genes of living organisms.
The capacity of our digital storage devices has skyrocketed in recent years. But there’s one storage medium that still kicks the crap out of our state-of-the-art solid state, and humans didn’t invent it. It’s called DNA.
CRISPR/Cas is a new technology that allows unprecedented control over the DNA code. It’s sparked a revolution in the fields of genetics and cell biology, becoming the scientific equivalent of a household name by raising hopes about new ways to curediseases including cancer and to unlock the remaining mysteries of our cells.
Biologists just discovered 11 new species of chameleon hiding in plain sight—as chameleons tend to do.