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MA_775_DIABLO [31]
2 years ago
11

In a PCR reaction, a few seconds at high temperature disrupts the ____ that hold the two strands of DNA together, so every molec

ule of DNA unwinds and becomes single-stranded.​
Biology
1 answer:
Andrews [41]2 years ago
7 0

Answer:

Hydrogen Bonds

Explanation:

In the polymerase chain reaction (PCR) the temperature rises to 90 ° C - 95 ° C, to break the hydrogen bonds, which are the types of bonds responsible for pairing the two strands of DNA, this process is known as denaturation of DNA.

The DNA is extremely stable, due to a large number of bonds (hydrogen bonds) that form between the two strands. If the temperature decreases, these bonds will begin to recompose, until the DNA returns to its original state

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Skeletal muscles whose primary function is extension of a joint include the
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The answer is triceps muscles. These muscles run along the back of the upper arm while the biceps run along the front. The triceps muscles allow the arm to extend at the joint of the elbow, therefore an antagonist of the biceps that bend the forearm.






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The three dimensional folding shape of a prion is probably most determined by
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Prions are infectious agents that are made up of proteins which can fold in multiple ways. The three dimensional folding shape of a prion is determined by folding and intra molecular bonding of the linear amino acid chain. The folding and the intra molecular bonding on the other hand is determined by the amino acid sequence in the prion.
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A particular triplet of bases in the template strand of dna is 5′-agt-3′. What would be the corresponding codon for the mrna tha
Daniel [21]

Answer:

The correct answer will be- 3' UCA 5.

Explanation:

DNA is known as the genetic material of the organism as it provides the instructions to the organism. The instructions are provided in the form of triplets of bases called codons.

The organism gets the information through the two important processes called transcription and translation.The transcription transcript the information of the DNA by forming a complementary molecule called mRNA.

The sequence of the mRNA is in accordance with the Chargaf rule which stated that A will bind T (U in case of RNA) and G will bind C. Since the sequence of DNA is 5′-AGT -3′, therefore, the corresponding mRNA will be 3' UCA 5'.

Thus, 3' UCA 5' is the correct answer.

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A patient has a large bruise so the phlebotomist collects a blood specimen distal to it. describe where the specimen was collect
olga55 [171]

Phlebotomy refers to a collection of venous blood. This operation can be practiced on all the superficial veins of the body, on those of the foot, the leg, the neck, the whole upper limb. It must be done in an area where there is a protruding vein and the least sensitive to limit pain to the patient. It should not be done in an altered, injured or infected area (like bruise)

The blood is collected on tubes with or without anticoagulant according to the analyzes that one wants to practice.

The reason for choosing the sampling site is for the most part practical, the veins are easily identifiable, and easily accessible for paramedical personnel. Their collection is less dangerous than that of arteries, which are generally thinner and close to the peripheral nerves.

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marysya [2.9K]

Answer:

The term unicellular and multicellular describe how living things are organized.

Explanation:

The number of cells in living things determine how the body organization will be.

Living things are made up of cells in which there are two types of living cells. We have the unicellular and multicellular cells.

The unicellular are made up of one cell (single cell) the unicellular organisms are simple cells which make their functions simple while the multicellular organisms are made up of two or more organisms and their functions are special unlike the unicellular which the functions are simple

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