Which of the following drugs or classes of drugs commonly pr…

Which of the following drugs or classes of drugs commonly produce exercise intolerance as a side effect? 1. Non selective B blockers such as Propranolol (Inderal) 2. Alpha 2 agonists such as Clonidine (Catapres) 3. Selective B blockers such as Atenolol (Tenormin) 4. Digoxin (Lanoxin)

A double strand break occurred (left).  What is the product…

A double strand break occurred (left).  What is the product of the DNA repair shown below (right)? A———-       ————B                                                               A————————-b                   A———-       ————B                                                               A————————-b