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This term refers to the idea that a single characteristic is encoded for my multiple genes at different loci . This gives rise to continuous variation.

A reflex is an unconcious response to a potentially harmful stimulus, such as pulling a tray out of the oven without oven gloves on! Reflexes bypass the brain and instead have a circuit that only passes thro...

The citric acid cycle (AKA the TCA cycle, AKA the Krebs cycle) is an incredibly important set of chemical reactions which is at the centre of how all aerobic organisms function. It is also really complicated...

Randomised controlled trials are the most important way that new medical therapies (drugs, devices, procedures and so on) are tested. ‘Controlled’ means that volunteers in the trial are split into groups. On...

There are lots of different types of cancer which affect different tissues in the body, and two cancers of the same type may not have the same causes. This makes cancer interesting, but also potentially conf...