This increases the possibility of studying the process of stem cell aging. The UW–Madison team used single-cell genetic ...

Like people, bacteria get invaded by viruses. In bacteria, the viral invaders are called bacteriophages, derived from the ...

Interphase The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis. Prophase The DNA in chromosomes and their copies condenses to become more visible.

A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

Microscopes are needed to study cells in detail. Cell division - AQA Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures that when a cell ...