1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
neonofarm [45]
3 years ago
8

For some time it was not clear whether lac repressor inhibits lac operon transcription by inhibiting the binding of RNA polymera

se to its promoter or by allowing transcription initiation but blocking elongation past the site of bound repressor.
Biology
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

True.

Explanation:

The lac repressor is a molecule that is part of the regulation of genes to metabolize lactose to some bacteria, including Escherichia coli. Bacteria need to metabolize lactose to provide energy to your body, in which case the lac repressor acts as a lactose detector, preventing the genes responsible for lactose metabolism proteins from being activated unnecessarily, thereby preventing lactose digestion. The lac repressor has the opposite function to the lac operon, which stimulates lactose digestion.

However, for some time, it was unclear whether lac repressor inhibits lac operon transcription by inhibiting RNA polymerase binding to its promoter or allowing transcription to begin, but blocking elongation after the bound repressor site.

It is now recognized that lac repressor paralyzes enzyme production in the absence of lactose, and catabolic activator protein (CAP), which aids in the production of glucose in the medium.

You might be interested in
Compare surface, subsurface, and placer mining in terms of damage to the environment.
vfiekz [6]
Surface mining, which is also known as strip mining, is when soil and rock overlaying mineral deposit is removed. It can cause habitat destruction, air pollution from dust particles, soil erosion and pollution. Subsurface mining is removing deposits from the Earth by drilling underneath layers of rock and dirt. To keep the pathways clear, <span>mining companies have to pump out large amounts of water, which go into surface ecosystems. That disrupts the ecosystem by changing the pH conditions of soil and water sources. Placer mining is mining of stream bed deposits for minerals, a way of obtaining minerals and metal resources. Although, because it is small, causes less damage to the surrounding environment it still can disrupt river ecosystems with pollution and sediments. 
 

I hope this helps!!

</span>
5 0
3 years ago
Read 2 more answers
What kind of plants do people usually put on display for Christmas?
Ivenika [448]

Answer:

ty <3

Explanation:

4 0
3 years ago
Read 2 more answers
5x5= Can you sub to my friend
scoray [572]

Answer:

25

Explanation:

of course!‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

5 0
3 years ago
Read 2 more answers
Which of these chemical bonds is weakest
Drupady [299]
Which of the chemical where are the chemical
3 0
4 years ago
Read 2 more answers
This is 7th grade hon science
creativ13 [48]
The earth was created by God in 7 days by forming it and calling it good on the 7th day of creation
5 0
3 years ago
Other questions:
  • Which is part of the biosphere? A. humans B. stratosphere C. volcanoes D. oceans
    13·2 answers
  • The green color of the caterpillar is an example of a
    10·1 answer
  • The purpose of a(n) _________ on a map is to help figure out how the distances on the map relate to the actual distances on the
    9·2 answers
  • The carbohydrates seen here contain three common elements. they are
    13·2 answers
  • Who came up with the theory of perfection
    8·2 answers
  • Which form of light can a human eye see
    5·1 answer
  • Demonstrate an experiment to show carbon dioxide is produced at the end of anaerobic respiration​
    13·1 answer
  • Pleasee help meee ill mark brainiest!! :) tysm
    8·2 answers
  • 95% of plastics in the ocean are
    13·1 answer
  • 2. Which of the following compounds in living things contain carbon?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!