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andreev551 [17]
4 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]4 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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Which reason best explains why dead specimens must be used with transmission electron microscopes?
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3 years ago
A. Secretes hormones
Vadim26 [7]

Answer:

A. 3

B. 4

C. 5

D. 6

E. 2

F. 1

Explanation:

1. Integumentary system.

This is an organ system that consists of hair, skin, nails and exocrine glands with receptors that senses the outer stimulus and environmental conditions, through homeostasis maintain stability of the internal environment.

2. Nervous system.

It receives sensory information and signals, convert them to nerve impulses that are transmitted to the body and brain via the spinal cord using nuerons and axons. It also intergrates, retains and analyses information in the brain.

3.Endocrine system.

Secretes hormones and chemicals in response to stimulus from the nervous system to maintain balance using feedback loops i.e, negative and positive.

4. Lymphatic system.

Part of the immune system that consist of vessels that carries lymph, cleaning the blood by filtering lymph with foreign particles into the lymph node.

5. Urinary system.

Used to eliminate waste from the body, regulates blood pressure, volume and pH. It also used to retain electrolytes and metabolites.

6. Respiratory system.

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How is glucose different from glycogen?
Zigmanuir [339]

Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.

<h3>What is Glycogen?</h3>

Glycogen may be defined as the reserved form of glucose that is constructed up of many interconnected glucose molecules.

When the cell needs immediate energy to accomplish metabolism, they directly use glucose for it, but while energy is not needed by the cell, then glucose is stored in the liver and muscles in the form of glycogen.

Therefore, Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.

To learn more about Glycogen, refer to the link:

brainly.com/question/4303062

#SPJ1

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