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notka56 [123]
3 years ago
13

What acts as a on and off switch for translation

Biology
1 answer:
bulgar [2K]3 years ago
5 0
An operator is a segment of DNA that acts as an on/off switch for a translation


different ways to call operator are
operon
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A sleepy driver rounds a bend and sees a deer standing in the road. The driver snaps to attention and applies the brakes, averti
Serhud [2]

Answer:

A sleepy driver rounds a bend and sees a deer standing in the road. The driver snaps to attention and applies the brakes, averting the accident, because his brain was aroused by the <u> Reticular Activating system(RAS).</u>

<u>Explanation:</u>

  • Reticular activating system (RAS) is a part of brain that filters the sensory signal that tries to reach our brain.
  • However the olfactory Signal do not pass through it .
  • Reticular activating system is located at the brain stem little above the spinal column.
  • This is an extremely important part of the brain because it sorts various sensory signals into important and non-important ones.
  • RAS allows only those information into the brain that needs immediate attention of the conscious mind.
  • Hence it is responsible for sudden wakefulness.
  • Our sensory organs perceive thousands of information each second and direct them towards the brain.
  • If RAS was not there then our brain would have reached a state of confusion every minute and might have failed to give proper response to any of the stimulus.
  • In the given situation, the sudden sight of the deer acted as a threatening stimulus.
  • This information needed immediate attention of the driver's conscious mind and his brain was thus aroused by the RAS.
3 0
3 years ago
When using data from population genetics research:
lukranit [14]
I would say D idk or it would be B I hope this helps
7 0
3 years ago
Read 2 more answers
In fermentation, which step of cellular respiration is being accomplished?
Annette [7]
The process that occurs in a cell when there is not enough oxygen is called fermentation. Fermentation occurs through the process of Anaerobic Respiration, where instead of using oxygen, organic and inorganic molecules are used as final electron acceptors. The by-product of this process is usually alcohol, ethanol, or acetic acids.
<span>
Fermentation is commonly used in lactic acid (in muscles) and alcohol (beers, whiskey) fermentation where the by-product is ethanol. Yeasts are a common organism that uses this process, where it convert sugars into alcohols or acetic acids.</span>
7 0
3 years ago
Carotenoids are often found in foods that are considered to have antioxidant properties in human nutrition. What related functio
LenaWriter [7]
<h3><u>Answer;</u></h3>

B. They protect against oxidative damage from excessive light energy

<h3>Explanation;</h3>
  • Some carotenoids seem to be function as photoprotectors.
  • These compounds absorb and dissipate excessive light energy that would otherwise damage chlorophyll or interact with oxygen, forming reactive oxidative molecules that are dangerous to the cell.
7 0
3 years ago
Celery stalks that are immersed in fresh water for several hours become stiff. Similar stalks left in a 0.15 M salt solution bec
mixer [17]

Answer:

From this it can be deduced that the fresh water is hypotonic and the salt solution is hypertonic to the cells of the celery stalks.

Explanation:

When submerged in water, the celery stalks become stiff and hard, this shows that water moves within the stalk, thus, water is hypotonic in comparison to the celery stalk. Therefore, water moves from the region of higher concentration to the region of lower concentration.  

When the same celery stalk is administered into the 0.15 M solution it turns soft, which shows that water from the celery stalk moves out. Thus, the salt solution is hypertonic in comparison to the celery stalk. Therefore, freshwater is hypertonic and the solution of salt is hypertonic to the celery stalk cells.  

3 0
2 years ago
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