Correctly match the complementary base pairs in RNA. ___Adenine ___Guanine 1.)Uracil 2.)Cytosine 3.)Thymine

You are treating a patient suffering with wound botulism in which Clostridium botulinum grows in a wound and makes a protein exotoxin, botulinum toxin. In addition to surgery to clean the wound and providing botulinum antitoxin, you wish to give the patient antibiotics to stop the protein toxin synthesis immediately. Which of the following antibiotics would you NOT give your patient if you wished to immediately stop bacterial translation? (best answer) O macrolides, e.g. erythromycin O trimethoprim plus sulfa drugs e.g. sulfamethoxazole O chloroamphenicol tetracylines aminoglycosides e.g. gentamicin

Proflavine was used to treat wounded soldiers in the Far East during the second world war. Which of the following statements is false regarding proflavine! H₂N7 NH₂ Its target is located in the cell membrane. Its planar shape is important to intercalation. The primary amine groups are protonated and interact with phosphate groups of the DNA backbone. When inserted into DNA, the tricyclic system can form van der Waals interactions with base pairs above and below it.

You are studying COVID-19 which infects bat cells through an interaction between a lysine residue on a viral protein with an aspartic acid residue on the bat cell protein. You discover that when the virus made the jump into human cells, the virus mutated the lysine residue to leucine. Based on your knowledge of amino acid chemistry, which amino acid(s) will the leucine most likely interact with? Briefly explain your answer.