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Keily 0609 Morning Edition.m4a 693.77KB

the organism and are continuously replaced. Cells exposed to a harsh environment, such as in the skin or intestine, are often very short lived. In other tissues there may be less cell turnover under physiological conditions, but...

the microscopic to the wider world. Debate Noble vs Dawkins When two titans of biology, Denis Noble and Richard Dawkins, come together with diametrically opposing views on how evolution works and what genes do, you might expect sparks to...

electron microscopic studies of budding yeast exposed to nitrogen starvation have revealed a single preautophagosomal structure (PAS, also called a phagophore assembly site) located close to the vacuole, which is the yeast equivalent of...