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zhenek [66]
3 years ago
15

In E. coli, the presence of isoleucine shuts down the enzymatic pathway that results in the synthesis of isoleucine. This is an

example of __________.
Biology
1 answer:
Zanzabum3 years ago
6 0

Answer: Feed-back inhibition

Explanation:

When the final product of a biochemical pathway signal the inactivation of the starting materials of the pathway, feed-back inhibition is said to have occurred.

In this case, the amino acid, isoleucine signal the inactivation of its starting material. Thus, it is an example of feed-back inhibition

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What is John Doe's blood type? A drop of John Doe's blood was
vladimir2022 [97]

Based on the clumping that was obtained when anti-D serum was dropped into John Doe's blood,  John Doe's blood type is<u> Blood type D.</u>

<h3>What is blood typing?</h3>

Blood typing refers to the process by which blood is classified into types.

The process of typing blood involves reactions in which agglutination of blood occurs when a certain type of antiserum is dropped into the blood that contains a particular antigen such that an antibody-antigen pair is obtained.

The presence of certain antigens on the surface of blood helps to classify blood into types.

For example, when anti-A serum is added to a blood sample and agglutination occurs, the blood type could be either blood type A or blood type AB as these blood samples contain the A antigen on the surface of the red blood cells.

Similarly, when anti-D serum is added to a blood sample, the blood type is a blood group D as this blood sample contains the D antigen on the surface of the red blood cells.

Learn more about blood types at: brainly.com/question/27757703

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8 0
1 year ago
Within the troposphere, as altitude increases, temperature a osculates b. decreases C. increases d. stays constant ​
devlian [24]

Answer:

Hello! I believe this is your answer:

A. Decreases

Hope this helps, sorry if it's wrong!

Explanation:

7 0
3 years ago
CONSIDERAS QUE ES CORRECTO DECIR QUE LOS ANTIBIOTICOS SON MALOS PARA LAS BACTERIAS? Argumenta tu respuesta
vladimir1956 [14]

Answer:

Sí, ya que su función es matarlas o impedir que aumente el número de estas.

Explanation:

Los antibióticos actúan sobre las bacterias ya sea matandolas o evitando que la población de un determinado tipo de bacterias se reproduzca haciendo que los mecanismos de defensas presentes en nuestro cuerpo puedan actuar sobre las bacterias ya existentes.

Los antibióticos pueden ser específicos para cierto tipo de bacterias o actuar de forma general afectando a varios tipos de bacterias presentes en nuestro organismo. Si se atacan bacterias que están normalmente en nuestro cuerpo por acción indiscriminada del antibiótico, nuestro organismo sufre un desequilibrio ya que las bacterias que tendrían que estar presentes para procesar ciertos elementos o realizar otras funciones no están.

5 0
3 years ago
Why are multiple forms of documentation used at the scene of a mysterious death (note taking, sketching, photography, or videogr
Andreyy89

Answer: Multiple forms of documentation are used at the scene of a mysterious death, it gives the summary of the investigation at a glance.

Some of these forms of documentation are Note taking, Sketching, Photography or Videography.

NOTE TAKING; Field notes are always personal to the person that made/took them,

They are the most personal and readily available record of the crime scene search.

Field notes are the most important steps in documenting a crime scene initially.

SKETCHING; Sketching,as unimportant as it may seem has a potential benefit of complementing photograph and videos and also,crime scene sketch shows certain details about an investigation better more than a photograph.

PHOTOGRAPHY/VIDEOGRAPHY; Photographs and videos are excellent sources of evidence of a crime,they are good evidence to document a crime scene.

They can either be in the form of film or digital format.

It is always adviceable to employ digital photography/videography as it fast becoming a standard in crime scene documentation rapidly.

5 0
3 years ago
Why do you pass out if you lock your knees?
Inga [223]
It's caused by blood pooling in the legs, so there's insufficient return to the heart and brain. Normally, moving one's legs helps to pump blood back to the heart through muscle contraction. Locking the knees makes standing still easier, but reduces use of the leg muscles. In some people, this pooling may lead to hypoperfusion of the brain and fainting, which is essentially the body's way of putting the brain and the legs and the heart at the same level.
8 0
4 years ago
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