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.
May not disappear with rest or use of angina medication; Might signal a heart attack; There's another type of angina, called variant angina or Prinzmetal's angina. This type of angina is rarer. It's caused by a spasm in your heart's arteries that temporarily reduces blood flow. Characteristics of variant angina (Prinzmetal's angina)