Biology, 18.03.2021 03:10 priscillaan
The Trp operon is a coordinately regulated group of genes (trpA โ trpE) that are required for tryptophan biosynthesis in E. coli. Based on the figure below, which of the following correctly describes the regulation of the Trp operon?
Select one:
a. In the presence of tryptophan, the trpR gene is inactive, preventing the production of the repressor that blocks expression of the operon
b. In the presence of tryptophan, the repressor is active and binds to the Trp operator, preventing RNA polymerase from transcribing the operon
c. In the absence of tryptophan, the trpR gene is inactive, preventing the production of the repressor that blocks expression of the operon
d. In the absence of tryptophan, the repressor is active and binds to the Trp operator, preventing RNA polymerase from transcribing the operon
Answers: 1
Biology, 21.06.2019 21:00
Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?
Answers: 2
Biology, 22.06.2019 03:00
Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air
Answers: 2
Biology, 22.06.2019 03:30
Someone me with this: a mineral' is determined by its actomic structure.
Answers: 2
Biology, 22.06.2019 04:30
Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.
Answers: 1
The Trp operon is a coordinately regulated group of genes (trpA โ trpE) that are required for trypto...
History, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Spanish, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Health, 22.12.2020 23:30
History, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
Mathematics, 22.12.2020 23:30
English, 22.12.2020 23:30