These initial chemical changes create binding ... A is loaded at the right place and time during cell division. "PLK1 ...

Virtually all organic material on Earth has been produced by cells that convert energy from the Sun into energy-containing macromolecules. This process, called photosynthesis, is essential to the ...

Most animal, plant and fungal cells contain organelles called mitochondria. These descendants of a primordial bacterial ...

The chemical backbones of the ladder are made ... DNA takes this form following DNA replication during the process of cell division, when replicated chromosomes are highly condensed and appear ...

Light and electron microscopy have distinct limitations. Light microscopy makes it difficult to resolve smaller and smaller features, and electron microscopy resolves small structures, but samples ...