Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in dna, can you use it to predict the amounts of all four nucleotide bases when you only know the amount of one type of base? approximately 21% of the human genome is comprised of nucleotides containing c. given this information, calculate the percentage of the human genome that is comprised of nucleotides containing g, t, and a. (a) % of the human genome is comprised of g. (b) % of the human genome is comprised of t. (c) % of the human genome is comprised of a.

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?