The differences in nucleic acid atomic structure, namely the Hydrogen Bonds - 2 for an AT pair and 3 for a GC pair -, are way too small to be called 'subunits'. Edit Share to:
What is Inderal? Inderal (propranolol) is a beta-blocker. Beta-blockers affect the heart and circulation (blood flow through arteries and veins). Inderal is used to treat tremors, angina (chest pain), hypertension (high blood pressure), heart rhythm disorders, and other heart or circulatory conditions. It is also used to treat or prevent heart attack, and to reduce the severity and frequency of migraine headaches.
Angina is pain or discomfort that comes when your heart does not get enough oxygen. Angina is usually a symptom of a heart problem known as coronary heart disease (CHD), also called coronary artery disease (CAD) Your heart is a muscle. It pumps oxygen-rich blood to your whole body. Your heart also needs oxygen to work. Blood vessels called coronary arteries carry blood with oxygen to your heart.