Even tissues have to deal with the dead, and like everything else they do, they excel at it. The number of players involved in cell death is truly astonishing.
DNA has long been considered the “master molecule” in genetics, but its erstwhile servant, RNA, is gaining increased recognition for its many essential functions.
No one knows how apoptosis came to be, although there are theories. Even the simplest of animals are programmed for it.
Sarah Chaffee interviews biologist and Center for Science & Culture Senior Fellow Ann Gauger about apoptosis — or self-induced cell death.
A memory of past events helps a cell learn how to respond to recurring threats and protect the genome.