The small organ evolved too many times for it to be an accident, but it’s still unclear what it does.
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Disruptions in the interaction between nuclear and mitochondrial DNA can lead to deficiencies in the mitochondrial energy-generating process, affecting fitness.
A new faster-switching, longer-lasting GFP allows gentler and faster high resolution microscopy on living cells.
A small insect-eating animal is the common ancestor of whales, elephants, dogs, and humans.
Protein aggregates in the brains of some people with dementia or motor neuron disease have a surprising origin.
One of the most advanced tuberculosis vaccines has failed to protect infants from getting the disease in a clinical trial, but it may be effective in adults.
A company offering experimental stem-cell treatments will carry out its procedures in Mexico after the FDA warned that it would need approval to operate in the U.S.
Live-cell imaging forces cells to perform in an unnatural environment, but with the right chamber, you can keep them warm and comfortable.
As X-ray crystallography enters its second century, shrinking crystals and brighter light sources are redefining structural biology.
The eating schedule—and not the amount of calories—can make the difference between an obese, diabetic, sick mouse and one with a healthy metabolism.
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