Between which two atoms of water are hydrogen bonds are formed?
between the hydrogen atom of...
Answers: 3
Biology, 21.06.2019 23:00
Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.
Answers: 3
Biology, 22.06.2019 01:30
How does friction with the atmosphere affect the speed of an artificial satellite
Answers: 3
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 06:10
Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt
Answers: 2
Social Studies, 03.12.2020 21:40
History, 03.12.2020 21:40
Chemistry, 03.12.2020 21:40
Physics, 03.12.2020 21:40
English, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Social Studies, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40