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Vikentia [17]
2 years ago
7

Before the development of electrophoresis to separate macromolecules, ____________ was used.

Chemistry
1 answer:
max2010maxim [7]2 years ago
4 0

Before the development of electrophoresis to separate macromolecules, high-speed centrifugation was used to isolate DNA.

A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrical charge. The molecules are moved by an electric current through a gel or other matrix. The technology of electrophoresis is crucial for the separation and examination of nucleic acids. At the lab bench, cloned DNA fragments are frequently isolated and worked with using nucleic acid electrophoresis.

High-speed centrifugation employs centrifugal force to separate particles with various densities or masses suspended in a liquid. High-speed rotation of the solution inside the tube causes each particle's angular momentum to experience centrifugal forces inversely proportionate to its mass.

To know more about electrophoresis refer to: brainly.com/question/28709201

#SPJ4

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3 0
3 years ago
Do constellations appear the same in Northern and Southern Hemisphere? Why or Why Not?
Mashcka [7]
The visible constellations<span> are definitely different between the Northern and Southern Hemispheres. In general, at any given point on Earth, only around 50% of the sky will be visible. We can understand this by considering the atmosphere as a sphere around the earth. The sky any person can view at one point can be compared to a giant dome equal to half of the sphere. And because the Earth rotates, the dome we can see changes, unless one is sitting directly on the North or South Pole.</span>
5 0
4 years ago
In the video, the semipermeable membrane separates the two solutions of different concentrations. Watch the video and identify w
Zanzabum

Explanation:

A and D

A. A pressure equal to that of the osmotic pressure will result in reverse osmosis.

D. The movement of the solvent particles from the concentrated solution to the dilute solution is known as reverse osmosis.

During osmosis, water molecules from the less concentrated right side, will flow into the left side til they equilibrate- at equilibrium both sides will have the same concentration of solute.

Thus, the water passes through the membrane due to the difference in osmotic pressure/ solute concentration on either side of the membrane, this means that the water moves from regions of high osmotic pressure/concentration to regions of low osmotic pressure /concentration.  

Water potential equal to the pressure potential shifts  the equilibrium, resulting in the movement of solute.

<h3>                              φ= φs+φp</h3>

However, in reverse osmosis, solute molecules move from regions of high solute concentration, to regions of low solute concentration across the membrane.

Learn more about membrane components at brainly.com/question/1971706

Learn more about osmosis at brainly.com/question/5825825

#LearnWithBrainly

8 0
4 years ago
How many atoms do I have if I have 2 moles of Hydrogen atoms?
maw [93]

Answer: 6

Explanation: if you multiply the number of moles in the hydrogen atoms by the number of the once displayed and you multiply it by 3 and get the answer 6

6 0
3 years ago
What happens to the reactivity of nonmetals within a group from top of the group to the bottom?​
andreev551 [17]

As you go down a group, the atoms get bigger. The bigger the atom, the more unstable it is. The more unstable it is, the more reactive the atom will be. So, as you go down a group, the nonmetals will become more reactive.

6 0
4 years ago
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