What distinguishes a linear metabolic pathway from a cyclic metabolic pathway? Enzymes convert reactants into Intermediates before separate enzymes intermediates into products. The product inhibits an enzyme the pathway, slowing stopping the metabolic pathway. A linear pathway runs straight in one direction from reactant to product The last step of the pathway regenerates a reactant for the first step

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

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?

In the water cycle , when does water undergo a chemical change