Answers: 1
Biology, 22.06.2019 02:50
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?
Answers: 1
Biology, 22.06.2019 03:30
Apair of fruit flies reproduces and has 1,000 offspring. all 1,000 of the offspring have the alleles gg. what is the most likely combination of alleles for each parent
Answers: 1
Biology, 22.06.2019 17:20
Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.
Answers: 3
Biology, 22.06.2019 17:40
Which factor affects the force of gravity between objects? check all that apply. direction distance mass shape time
Answers: 2
Which statement best describes an isolated system?...
History, 10.07.2019 15:00
Chemistry, 10.07.2019 15:00
Mathematics, 10.07.2019 15:00
Mathematics, 10.07.2019 15:00
Mathematics, 10.07.2019 15:00
Biology, 10.07.2019 15:00
History, 10.07.2019 15:00
Biology, 10.07.2019 15:00