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Proteins, also known as polypeptides, are amino acid sequences. All proteins are made of amino acids.Proteins exhibit variance. This is due to the fact that there can be ...

A mutation is a change in the genetic composition of the DNA. It is often caused by an accidental insertion, deletion or swapping of a single base however whole genes can also move.

SNPs,...

Intercostal muscles and the diapragm contract, which causes the ribs to move upwards and outwards. This increases the volume of the thorax, therefore lowering the pressure within the lungs. The pressur...

A reflex action is an automatic rapid involuntary response, which acts to protect the body from damage. Such as when you touch something extremely hot, you involuntarily remove your hand from the hot o...

An enzyme is known as a biological catalyst. This is because they can speed up reactions by providing an alternative pathway, lowering the activation energy of the reaction. They are normally composed ...