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maw [93]
3 years ago
12

Explain fully, in your own words, why the temperature during PCR goes through cycles of 94C, 50C, 72C.

Physics
1 answer:
Aliun [14]3 years ago
3 0

Answer:

Explanation:

The DNA polymerase used in PCR reaction usually can tolerate high temperature (94degree celcius), the temperature necessary to separate two complementary strands of DNA in a test tube.

If PCR goes through 72degree celcius, which is the temperature optimum for taq polymerase. It starts the extension process where taq polymerase will work away from the primer provided and generated a new DNA strand.

If PCR goes through 50degree celcius, it is annealing temperature. It is related to the melting temperature of the primers and must be determined for each primer pair used in PCR.

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Plz help urgent <br> i will give brainliest
In-s [12.5K]

Answer:

The answer is D. Balanced forces

Hope it helps.......... pls mark as brainliest

5 0
3 years ago
What is inertia?by Walter Levin..<br>​
Tom [10]

Inertia is directly proportional to mass.

What is Walter Lewin famous for?

Walter Hendrik Gustav Lewin (born January 29, 1936) is a Dutch astrophysicist and former professor of physics at the Massachusetts Institute of Technology.

Lewin earned his doctorate in nuclear physics in 1965 at the Delft University of Technology and was a member of MIT's physics faculty for 43 years beginning in 1966 until his retirement in 2009.

According to Walter Levin,

The concept of moment of inertia is demonstrated by rolling a series of cylinders down an inclined plane.

Inertia is the resistance of any physical object to a change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed when no forces act upon them.

By rolling a series of cylinders down on an inclined plane , he demonstrated that a cylinder have a smooth friction.

He compares the rolling cylinder by using hollow cylinder and a heavy cylinder , and finalize the result that a hollow cylinder moves slowly but the heavy cylinder move faster.

Hence , By doing this experiment he explained about the inertia that Inertia depend on the mass of the object. As the heavy the object it will take more time to travel or move.

Learn more about inertia here:brainly.com/question/3268780

#SPJ1

7 0
2 years ago
Martina has a sample of an unknown substance. She measures the substance. It’s mass is 13.5 grams, and it’s volume is 5 cm3 .Whi
Dominik [7]
Cm^3 is same as mL

13.5 g / 5 mL = 2.7 g/mL
look up densities of metals
aluminum has a density of 2.7 g/mL
6 0
3 years ago
Assuming that the circuit is in the steady state, what is the total energy stored in the two capacitors? j
Neporo4naja [7]

<span>The total energy stored is the sum of the energy stored in the capacitors. If the capacitors  are series connected capacitors, then the charging current is the same for both capacitors. This means that each capacitor stores the same energy and the stored energy is two times the energy of any of the capacitors.</span>





8 0
4 years ago
What type of motion occurs when an object spins around an axis without altering its linear position?
Zepler [3.9K]
That would be called "rotation".


8 0
3 years ago
Read 2 more answers
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