Microorganisms seem to have found a home nearly everywhere on the planet, including the insides of animals. The skin, gastrointestinal tracts, lungs, and mouths of humans have been colonized by ...

Researchers have identified an important event in the enigmatic final step of mammalian cell division: thin spiral fibers may physically "cut" one daughter cell from ...

Every day, our bodies perform around 330 billion cell divisions to keep us alive and functioning. These divisions rely on the cell cycle, which has been in place since the earliest bacteria. The ...

Before a cell commits fully to the process of dividing itself into two new cells, it may ensure the appropriateness of its commitment by staying for many hours -- sometimes more than a day -- in a ...

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For sexual reproduction to yield healthy offspring, newly generated oocytes—immature egg cells—must receive the correct amount of DNA after cell division. This process of segregating chromosomes ...