Please briefly explain the initiation of trancription in bacteria

An operon that encodes enzymes that degrade ampicilin is most likely __________ . A) inducible B) under positive control C) under negative control D) repressible E) controlled by CAP

When bacteriophage P1 causes E. coli to lyse, the resulting materialis called a P1 lysate. What type of genetic material would befound in most of the P1 phages in the lysate? What kind of geneticmaterial is occasionally found within a P1 phage?

What is the mode of action of bacitracin?  How does this influence the types of bacteria it can be used against effectively? What is the mode of action of tetracycline?  How does this influence the types of bacteria it can be used against effectively?

All of the following are examples of mechanisms of antibiotic resistance EXCEPT Tetracycline resistance by efflux pumps to pump antibiotic out of the cell Secretion of urease enzyme to produce ammonia (NH3) destroying mucous producing cells Enzymatic destruction of penicillin family antibiotics by beta-lactamases Alteration of tetrapeptide chains by Vancoycin Resistant Enterococci (VRE) Enzymatic modificaton of aminoglycosides to prevent antibiotic binding to the target molecule

Please List the similarities and differences of gene arrangements in BCR and TCR.

What is the mechanism that makes Bacteria resistant to Beta-lactams

Does bacterial transformation occur in nature?

What bacterial structural target would make an antibacterial drug selective for gram-negative bacteria? Provide one example of an antimicrobial compound that targets this structure.

What is required for a bacteriophage T4 virion toattach to an Escherichia coli cell?