Which best defines a diploid cell during meiosis? a. a cell that has double the number of chromosomes as the parent cell b. a cell that has half the number of chromosomes as the parent cell c. a cell that has double the number of chromosomes as the daughter cell d. a cell that has half the number of chromosomes as the daughter cell

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

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?

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis