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Vesnalui [34]
2 years ago
5

Which of the following statements best defines the term operon?

Biology
1 answer:
Mandarinka [93]2 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 dermis:
Vladimir79 [104]

Answer:

D. is responsible for most of the skin's structural strength.

Explanation:

A. contains no blood vessels.

False. The dermis contains blood vessels together embedded in it along with the sweat and sebaceous or oil glands, hair follicles, and nerve endings.

B. functions as a padding and insulation.

False. The fat layer that is located below the dermis is the one responsible for padding and insulation.

C. is divided into three distinct layers

False. The dermis is divided into only two separate layers. These are the papillary layer or the upper layer and the reticular layer or the lower layer.

D. is responsible for most of the skin's structural strength.

Yes, the dermis functions for providing the skin's structural strength because of it's thick fibrous and elastic tissue layer. This layer consists primarily of collagen and elastin that also allows for the skin's flexibility.

E. is made of epithelial tissue.

False. The dermis is made up of fibrous and elastic tissue. It is the epidermis which is composed of the epithelial tissue.

6 0
3 years ago
Read 2 more answers
An 86-year-old male client who was admitted earlier in the week with thrombophlebitis is being sent home on enoxaparin. Which st
Goshia [24]

Answer:

The client must be clear that to avoid complications, he should take exaparin through the vein. This medication is a type of low molecular weight heparin that must be judiciously given 1 or maximum 2 times a day. At the same time at home, exercises such as limb elevation and patient movement should be done. He can also use compression media .

Thrombosis is the presence of a clot in a vein.

7 0
3 years ago
View the slides on the PowerPoint to match each of the cell structures with the correct letter labels for each of the following
loris [4]

Answer:

10. View the slides on the PowerPoint to match each of the cell structures with the correct letter labels for

each of the following cells.

Elodea Cell Cell wall _B____ Chloroplast _A___ Area of vacuole _C__ Onion Cell Cell wall _B__ Nucleus __A_ Mitochondria _C__ Cheek Epithelial Cell Cell membrane _B__ Nucleus __A_ BacteriA Bacterial Cells. View the bacterial cells on the PowerPoint and identify which cell (A, B, or C) is: Coccus ________B____ Bacillus ______A______ Spirillum ______C______ Protista Amoeba can move via the extension of finger-like projections called pseudopodia

Explanation:

Amoeba can move via the extension of finger-like projections called pseudopodia, what prevents plant cells from moving in the same fashion?

Ans: The plants that prevent the information of pseudopodia have rigid cell walls. which is unlike to amoeba.  

How does the euglena compare to both plant and animal cells (i.e. - explain what structure(s) might make it similar to plants and what structures might make it similar to animals).

Ans: Euglena are similar to plants because they both have chloroplast and are similar to animals because  neither has a cell wall.

5 0
2 years ago
Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid
Lelu [443]

Answer:

The correct answer is - solubility

Explanation:

Solubility is the nature of the material that is a chemical property of that specific solute ability to dissolved in a solvent. The ability of solute or material in a solvent or liquid is measured by the term of the maximum amount of that material dissolved in the liquid at equilibrium.

Sugar and water is a great example of solubility. When sugar is missed in the water it dissolved in water and disappear in the water here sugar is solute and water is solvent.

Thus, the correct answer is - solubility.

4 0
3 years ago
Differentiate between solving a problem with science and a problem without science
kramer
Solving problems with science means that to solve the problem the scientific method is used. This method includes observing, research, hypothesis , test and conclusion with a help of lot high level theory.

Without science there is not strict process to follow in order to resolve the problem end get to a solution.
7 0
3 years ago
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