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Vesnalui [34]
3 years ago
5

Which of the following statements best defines the term operon?

Biology
1 answer:
Mandarinka [93]3 years ago
5 0

Answer:

b. An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter

Explanation:

An operon is usually found in prokaryotic organisms. It refers to the functional structure within prokaryotic genome in which multiple different genes are under the control of one promotor. All of the genes are transcribed together which leads to the formation of polycistronic mRNA. Polycistronic mRNA migh undergo splicing to create monocistronic mRNAs which will be translated separately into few products (proteins).

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The wings of a bird and the wings of an insect are examples of _______ characteristics.
Agata [3.3K]
They are homologous characteristics.
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3 years ago
Why is water primarily a liquid in living systems?
Softa [21]

Answer:

Water has many properties that are critical to maintaining life. It is polar, allowing for the formation of hydrogen bonds, which allow ions and other polar molecules to dissolve in water. ... All of these unique properties of water are important in the chemistry of living organisms.

Explanation:

3 0
3 years ago
Describe the cardiac cycle
loris [4]
<span>I would say all the activities of the heart through one complete heartbeat—Which is, through one contraction and relaxation of both the atria and ventricles.

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3 0
3 years ago
After studying plate tectonics, Lee became interested in mid-ocean ridges and how rock develops as the tectonic plates spread ap
Brrunno [24]

Answer:

A, B, E

Explanation:

The magma rising through the cracks makes new younger rocks close to the crack as the magma follows out and hardens. This means that rocks farther away from the crack are older because they where formed when they where right next to the crack. They are father away meaning they got pushed back as time went on.

Mid ocean ridges are a result of the spreading not the cause.

Because they are in the middle of the ocean and they are moving constantly i dought the mid ocean ridges are creating continents.

4 0
3 years ago
An antimicrobial that inhibits bacterial cell wall synthesis will result in which of the following?
myrzilka [38]

Answer: Option E.

Explanation:

Antibiotics are defined as the medicines that helps to stop the infections caused by bacteria.

Inhibition of cell wall synthesis of bacteria is one of the mechanism used by antibiotics to stop the infection.

In the presence of antibiotic, When a bacterial cell starts replicating, the peptidoglycan layer becomes weaker and weaker, and the cell got bursts when it become difficult to withstand the internal osmotic pressure that results in inhibition of bacteria.

Hence the correct option is E.

7 0
3 years ago
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