It occurs at the metaphase of the cell division cycle.
The subunit of proteins is one protein molecule that assembles with more protein molecules to make a protein complex.
Hope this helps! ;)
Diseases that can affect the circulatory system include:
Atherosclerosis. Atherosclerosis is a hardening of the arteries. ...
Heart attack. ...
Mitral valve prolapse. ...
Mitral valve regurgitation. ...
Mitral stenosis. ...
Angina pectoris. ...
Arrhythmia and dysrhythmia. ...
Cardiac Ischemia.