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andreev551 [17]
3 years ago
5

The PCR protocol that is currently used in laboratories was facilitated by the discovery of a bacterium called Thermus aquaticus

in a hot spring inside Yellowstone National Park, Wyoming. This organism contains a heat-stable form of DNA polymerase known as Taq polymerase, which continues to function even after it has been heated to 95 degrees C. Why would such a heat-stable polymerase be beneficial in PCR
Biology
1 answer:
Ugo [173]3 years ago
5 0

Answer:

The correct answer is - Each cycle includes a "hot" denaturation phase (95C), which separates the hydrogen bonds that hold the strands of the template DNA together.

Explanation:

PCR is a polymerase chain reaction created by karry Mullis which is utilized to amplify a copy of DNA segments or a single copy of DNA or gene. The following are the steps involved in PCR reaction;

Denaturation: During this progression, the two-fold strand of DNA gets separated. The temperature required for this progression is 94 — 98 C.  

Annealing: during this progression, Template DNA and DNA primers get attached. The temperature required for this progression is 55 — 70 C  

Extension: During this progression, the polymerase includes the bases that are reciprocal to the template DNA strand. The temperature required for this progression is 65 — 72 C.  

At such high temperatures, DNA polymerase gets denatured. As it very well may be found in the above strides for the isolation of the DNA strand high temperature of 94 — 98 C Is utilized. Taq polymerase can withstand such high temperatures.

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Answer:

La función del sistema nervioso periférico es doble. Por una parte transporta los estímulos que recibe el organismo, tanto externos como internos, hasta el sistema nervioso central para ser procesados.

Explanation:

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4 0
2 years ago
All living organisms are composed of
Inessa [10]
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one or more cells.
7 0
2 years ago
A scientist crosses a rabbit with short fur and a rabbit with long fur. which of these outcomes would show that the trait for fu
maks197457 [2]

Answer:

d. all of the offspring have medium length fur.

Explanation:

Incomplete dominance is a phenomenon in which offspring produce a trait that is intermediate between the two forms of a certain trait.

For example: In four o clock plant, some plants produce red flowers while some plants produce white flowers. When plants with red flowers are crossed with plants with white flowers, all the offspring have pink flowers.

Why is that so?

This is because no allele is completely dominant over the other and therefore both contribute their individual effect by producing intermediate phenotype.

Example in question:

Cross between a rabbit with short fur (SS) and a rabbit with long fur (LL)

P1:                                SS        x        LL

Gametes:                     S     and  L

Offspring                        SL :SL

SL: Medium length fur

Therefore this is a case of incomplete dominance.

Hope it help!

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3 years ago
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Answer:

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Explanation:

4 0
2 years ago
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Describe the importance of the inner membranes separating different regions of the mitochondrion and the chloroplast.
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Answer:

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The membrane is very important in chloroplasts and it fills the role of the inner mitochondrial membrane in electron transport and the chemiosmotic generation of ATP.

4 0
3 years ago
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