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Eduardwww [97]
3 years ago
12

What do restriction enzymes do?

Biology
1 answer:
hodyreva [135]3 years ago
4 0

D. They cut DNA at specific sequences.

Explanation - Restriction enzymes are those enzymes that identify specific DNA sequences and cleaves them at that particular region. Restriction enzyme mainly cleaves DNA and are sometimes directed by RNA to make the incision.

Restriction enzymes are used to carry out many biotechnology related experiments. They are widely used to study DNA or genome of various organism. For different restriction sites, different restriction enzymes are there and each enzyme are chosen based on the study under consideration.

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The answer would be:

Passive transport

Active transport

Why?

There are two ways molecules can move across membranes within the cell. What makes the two different is the use of energy.

PASSIVE transport is the movement of molecules DOWN the concentration gradient. The molecules move from areas of higher concentration to lower concentration. This does nor require energy. Comparing it to the scenario, the child starts from a higher area and ends at a lower area. Going down a slide does not take energy. The child simply goes down it.

When you talk about the child going UP a slide, think ACTIVE transport. Unlike passive transport, active transport requires energy, because the molecules move AGAINST the concentration gradient.  The movement of molecules in this type of transport is the opposite, it goes from lower areas of concentration to higher areas of concentration.

Hopefully, this has been educational for you and was able to help you understand the difference between the two.

4 0
3 years ago
What is the difference between simple diffusion and facilitated diffusion?
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Answer:

Simple diffusion is when the particles travel through the cell and facilitated diffusion is when the molecules travel through the cell.

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