Although epigenetic modifications contribute to trait variability, their effect pales in comparison to standing genetic variation. The raw material of evolution is genetic variation, but...


A reanalysis of genes tied to life span in mice reveals only a select few affect aging. Like it or not, you are always getting...


After 60 years of mystery, researchers have identified the pathogen responsible for White Fat Cell Disease. Water fleas of the genus Daphnia have long been...


Elaborate genome rearrangements take nesting to the extreme. Oxytricha trifallax is a single-celled virtuoso of genome rearrangement. Oxytricha is a ciliate, and like all ciliates,...


Sequencing a genome is not as simple as reading a book. All those neatly lined up letters are the final product of a complex process...


You’ve probably encountered at least one diagram in a biology textbook that didn’t make any sense to you. Although these pictures are supposed to clarify...


Rhinocladiella mackenziei is a fungus that infects the human brain. It is the most common cause of neurological fungal infections in arid regions of the...


There’s no doubt that an extra copy of chromosome 21 is what causes Down syndrome. There’s a lot of doubt, however, over which particular gene—or...


Although foxes look cuddly, these wild animals are equipped with sharp bites—and temperaments to match. Fear not, however, if you’re dying to get close to...


The mitochondria powering your cells are not all genetically identical. Genetic variation across the mitochondria of a single individual is common. This diversity is called...