One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA. This process ...

As opposed to gene-level mutations, mutations that alter longer stretches of DNA (ranging from multiple genes up to entire chromosomes) are called chromosomal mutations. These mutations often have ...

THUWAL, Saudi Arabia — Scientists have finally captured footage of the microscopic machinery that allows our cells to copy ...

Now, for the first time, EMBL scientists have directly observed this process in high resolution under the microscope using a new chromatin tracing method. The new study shows that the long DNA ...

Each chromatid is a full length DNA molecule. The stages outlined in the following example show a cell with a diploid chromosome number of four (two sets of two chromosomes) undergoing cell division.

The world is littered with trillions of micro- and nanoscopic pieces of plastic. These can be smaller than a virus — just the right size to disrupt ...