The hospice nurse is visiting the wife of a client who died 10 months ago. the wife states, "my life is meaningless since my husband died." the nurse recognizes that the client is in which stage of grief?

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

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?

Give an example of a trait that is controlled by more than one gene.