At the best resolution achieved, dendodendritic synapses were visible (magenta arrowheads – top). The same sample was then imaged using volume EM (FIB-SEM method) to confirm the accuracy in detecting ...

Brain cells, or oligodendrocytes (green), in the hippocampus are marked with the GFP genetic marker in the mouse brain. These cells often deteriorate during aging. Image credit: Gadek et al., Science ...

Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X chromosome is needed – so the other is randomly inactivated. Some cells use only a ...

Females have one active X chromosome and one dormant X chromosome in each cell. But a study suggests that genes on the dormant X get "reawakened" later in life, potentially giving the brain a boost.