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A change in the DNA base sequence resulting in a different protein structure.

This is because the left ventricle pumps oxygenated blood round the entire body while the right ventricle only pumps blood to the lungs which is a much shorter distance. Because the left ventricle needs to p...

Homeostasis at its core simply means the maintenance of balance – the body is said to achieve homeostasis when there is there is a balance between the ever-changing external environment and the relatively co...

This joint allows 360 degree movement, as there is cartilage at the ends of the bones. The joint itself is surrounded by synovial fluid which reduces friction in movement.

Transcription is the process which makes mRNA in the nucleus. Firstly, the gene uncoils and hydrogen bonds are broken, causing the two strands to separate. One of these strands is the template. RNA nucleotid...