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Harlamova29_29 [7]
4 years ago
5

An operon is controlled by a repressor. When the repressor binds to a small molecule, it is released from binding to DNA near th

e operon. The operon is never expressed if a mutation prevents the repressor from binding to the small molecule. The type of control illustrated is:_______a. negative inducible.b. negative repressible.c. positive inducible.d. positive repressible.e. attenuation.
Biology
1 answer:
Dominik [7]4 years ago
6 0

Answer:

Negative inducible.

Explanation:

Operon may be defined as the cluster pf genes that are expressed by the single RNA polymerase. The operon includes in the example of the the polycistronic genes.

Negative inducible operon includes the binding of regulatory protein with the DNA and inhibits transcription. The regulatory protein binds with the operator that prevents RNA polymerase transcription. The mutation in the negative inducible operon prevents the binding of repressor to the small molecule.

Thus, the correct answer is option (a).

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If the ocean current starts near the equator, can it warm up the air of any location it passes? *
Naily [24]

Answer:

NO

Explanation:

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7 0
3 years ago
What are food enzymes?
Llana [10]

there aren't many enzymes in food, mainly in fruits, the enzymes in friuts are very similar to ptylin found in the mouth that help break down sugar, they do not need to be ingested before they activate, a proof of this is the apple test, buy an apple, take a bite and leave it without covering it for a few minutes, you'll notice that the bitten part starts turning yellowish brown because the enzymes in the apple are already breaking it down.  

In summary, they do not need to be ingested before activation, and the major characteristic of an enzyme is that they do not change after they react with (breakdown) food, so they are in the same form before and after they finish breaking down the food.

8 0
4 years ago
Read 2 more answers
What impact will climate change most likely have on the population of the large banded snails?
Otrada [13]

Explanation:

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3 0
2 years ago
Polysaccharides in plant foods may function as a stored form of energy (starch) or an indigestible material (fiber) depending on
Slav-nsk [51]

Answer: Option D) the type of bonds between the monosaccharides

Explanation:

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Thus, both polysaccharides differ based on the types of bonds between the monosaccharides.

6 0
3 years ago
For an Aa mother, what fraction of her eggs have an a allele?
nadya68 [22]
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6 0
4 years ago
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