mitochondria

A paper in nature shows that fathers pass down mutations to their babies at a higher rate than mothers, says guest commentator Robert Martin.

Why Males Are Biology's Riskier Sex

by Robert D. Martin

New data have confirmed major differences in mutation rates between the sexes — showing that children inherit more mutations from their dads than from their moms, says guest commentator Robert Martin.
These mitochondria, in red, are from the heart muscle cell of a rat. Mitochondria have been described as "the powerhouses of the cell" because they generate most of a cell's supply of chemical energy. But at least one type of complex cell doesn't need 'em

Look, Ma! No Mitochondria

by Nell Greenfieldboyce

Scientists have found the first eukaryotic organism that functions fine without mitochondria, the "powerhouses" that make energy for the cells of yeast, humans and other animals.