In the salvage of purines, hypoxanthine-guanine phosphoribosyl transferase (hgprt) is responsible for which of the following processes:
a) guanine to guanosine monophosphate (gmp)b) inosine monophosphate to inosinec) adenine to adenosine monophosphate (amp)d) hypoxanthine to xanthine

Starting at the smallest, most simple level and working your way up to the most complex, explain how the following terms are connected. note-these terms are not in order molecules, atoms, organism, tissues, cells, organ systems, organs

What came first egg or chicken? and is tomato a vegetable or a fruit?

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?