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Vlad1618 [11]
3 years ago
15

What is the first step in extracting dna from water samples?

Biology
1 answer:
natka813 [3]3 years ago
8 0
DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells ... https://www.sciencelearn.org.nz/resources/177-the-body-s-first-line-of-defence .... DNA is soluble in water but insoluble in the presence of salt and alcohol ... Step 4. Cleaning the DNA. The DNA sample can now be further ...
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This is an animation of gel electrophoresis. which of these dna molecules is the shortest?
STALIN [3.7K]
In electrophoresis, the molecules travel between the positive electrode and the negative electrode carried by the current that is generated between them.
As seen in the image below, short fragments, due to their smaller size can travel faster than the longer fragments, so the fragments that have traveled the furthermost are the shortest. (marked E in the image)

6 0
3 years ago
State the law of magnetism
Mrrafil [7]

Law of Magnetism. The most basic law of magnetism is that like poles repel one another and unlike poles attract each other; this can easily be seen by attempting to place like poles of two magnets together.

4 0
3 years ago
When testing tonicity of red blood cells, if the solution became transparent after adding blood cells, you could assume:.
sveticcg [70]

If the solution becomes transparent we could assume that ;  The solution was hypotonic and the cells had burst.

<h3>Tonicity of red blood cells </h3>

To test for Tonicity of red blood cells, we placed the cells in a solution.When red blood cells are placed in hypotonic solution there is high rate of osmosis in which the solvent flows into the red cells placed in the solution the cells will experience a process known as Hemolysis and these cells do not diffuse light, the solution becomes a red transparent solution.

Hence we can conclude that If the solution becomes transparent we could assume that ;  The solution was hypotonic and the cells had burst.

Learn more about Tonicity of red blood cells : brainly.com/question/6658551

4 0
2 years ago
2. Which of the following statements describes nonrenewable resources?
borishaifa [10]

Answer:

Nonrenewable resources are never replaced.

HOPE IT HELPS!

PLS MARK AS BRAINLIEST!!!

8 0
3 years ago
Which substance gets broken down in a homogeneous mixture
klasskru [66]

Answer: Solute

Explanation: A solution is a homogeneous mixture consisting of a solute dissolved into a solvent . The solute is the substance that is being dissolved, while the solvent is the dissolving medium. Solutions can be formed with many different types and forms of solutes and solvents.

8 0
3 years ago
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