During both DNA replication and PCR the DNA double helix must be unwound. Explain how this...
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- In both DNA replication and PCR ( polymerase chain reaction) the unwinding of DNA is different.
- In PCR the Denaturation is the first step that make the double stranded DNA to single stranded DNA. In this step the temperature is provided should always greater than 90•C.
- But the DNA replication takes place under body temperature, thus the DNA double stranded unwind with the help of enzymes only. Topoisomerase relieves the strain in the DNA double helix and make ready for helicase to unwind the double strand. Single stranded binding protein (stablize DNA strand) and gyrase (hold DNA strands) prevent rewinding of the DNA.
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During both DNA replication and PCR the DNA double helix must
be unwound. Explain how this...
1. During both DNA replication and PCR the DNA double helix must be unwound. Explain how...
1. During both DNA replication and PCR the DNA double helix must be unwound. Explain how this is achieved during each process. 2. A methylguanosine cap and poly A tail are added to what molecule? Why are these processing steps important for the cell?
44. During DNA replication, the double helix is unwound, creating two single strands. One of these...
44. During DNA replication, the double helix is unwound, creating two single strands. One of these is called the strand, on which the progress of DNA Polymerase III is – 45. The other strand is called the strand, on which the synthesis is 16. During DNA replication, synthesis of a new sequence on the Leading Strand is continuous. Why is synthesis on the Lagging Strand discontinuous? 47. Generation of Okazaki fragments proceeds in three steps. Indicate which of the following...
Describe how the biochemistry of DNA can explain the DNA double helix structure.
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After Watson and Crick proposed the double helix model of DNA, three models for DNA replication...
After Watson and Crick proposed the double helix model of DNA, three models for DNA replication were proposed: conservative, semiconservative and dispersive. The following figures illustrate the Meselson and Stahl experiment, which demonstrated the correctness of the semiconservative model of DNA replication N15 N14 How would the results be if the correct model was the conservative or dispersive: 1. Conservative: 20 40 60 80 Time (min.) 2. Dispersive 20 40 60 80 Time (min.)
Complete each sentence to explain DNA replication. three parent strand as the During DNA replication, the...
Complete each sentence to explain DNA replication.
three parent strand as the During DNA replication, the double-stranded DNA bonds connecting the parent strands are broken. hydrogen covalent An enzyme called is responsible for this step. DNA polymerase helicase New position themselves along the parent strands through nucleotides two The nucleotides are joined to each oth by an enzyme called complementary base pairing unwinds Now, new daughter DNA molecules are produced, each consisting of one old and one new rendering DNA...
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Q1 The immediate template for PCR amplification is double stranded DNA. (True or False) Q2 A...
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help 7) In semiconservative DNA replication, each new double helix formed will have Atwo new strands...
help
7) In semiconservative DNA replication, each new double helix formed will have Atwo new strands and two old strands. Bone new and one old strand in each helix C)three new strands in one helix and three old strands in the second helix D)two new and one old strand in one helix and two old and one new strand in the second helix E two new strands in one helix and two old strands in the other helix. 8) A...
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44. During DNA replication, the double helix is unwound, creating two single strands. One of these is called the strand, on which the progress of DNA Polymerase III is – 45. The other strand is called the strand, on which the synthesis is 16. During DNA replication, synthesis of a new sequence on the Leading Strand is continuous. Why is synthesis on the Lagging Strand discontinuous? 47. Generation of Okazaki fragments proceeds in three steps. Indicate which of the following...
After Watson and Crick proposed the double helix model of DNA, three models for DNA replication were proposed: conservative, semiconservative and dispersive. The following figures illustrate the Meselson and Stahl experiment, which demonstrated the correctness of the semiconservative model of DNA replication N15 N14 How would the results be if the correct model was the conservative or dispersive: 1. Conservative: 20 40 60 80 Time (min.) 2. Dispersive 20 40 60 80 Time (min.)
Complete each sentence to explain DNA replication.
three parent strand as the During DNA replication, the double-stranded DNA bonds connecting the parent strands are broken. hydrogen covalent An enzyme called is responsible for this step. DNA polymerase helicase New position themselves along the parent strands through nucleotides two The nucleotides are joined to each oth by an enzyme called complementary base pairing unwinds Now, new daughter DNA molecules are produced, each consisting of one old and one new rendering DNA...
help
7) In semiconservative DNA replication, each new double helix formed will have Atwo new strands and two old strands. Bone new and one old strand in each helix C)three new strands in one helix and three old strands in the second helix D)two new and one old strand in one helix and two old and one new strand in the second helix E two new strands in one helix and two old strands in the other helix. 8) A...
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