This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: E. coli can synthesize the amino acid threonine or absorb it from the environment. In the thr ... (Read 93 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jul 15, 2019
E. coli can synthesize the amino acid threonine or absorb it from the environment. In the thr operon, the repressor is active when it is bound to threonine. If an E. coli bacterium is in an environment where threonine is absent, will transcription of threonine synthesis genes take place? Why or why not?
◦ no, because threonine will not be bound to the repressor, so the repressor will be inactive
◦ no, because threonine will not be bound to the repressor, so the repressor will be active
◦ yes, because threonine will not be bound to the repressor, so the repressor will be inactive
◦ yes, because threonine will not be bound to the repressor, so the repressor will be active
Campbell Biology: Concepts & Connections ¦ Taylor, Simon, Dickey, Hogan, Reece ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by lak on Jul 15, 2019

sierrahalpin

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 15, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 42% of students answer this correctly


lak

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 15, 2019
Excellent


sierrahalpin

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 15, 2019
Great! Please up vote :D


« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Properties of Nitric Acid Properties of Nitric Acid
Ionic Equilibria - Weak Acid and their conjugate Base Ionic Equilibria - Weak Acid and their conjugate Base
Glycerolipid/free fatty acid cycle and glyceroneogenesis Glycerolipid/free fatty acid cycle and glyceroneogenesis
Coupling of transcription to translation in E. coli via the interaction between NusE and G Coupling of transcription to translation in E. coli via the interaction between NusE and G
Acid–Base Balance Acid–Base Balance
The relationship between acid–base imbalances and potassium imbalances The relationship between acid–base imbalances and potassium imbalances
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

For a complete list of videos, visit our video library