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Why does enzyme DNA polymerase needs a primer for synthesis of a new strand?
- a)it can only add a nucleotide onto a pre-existing 3'-OH group
- b)The primer contains the promoters which can activate DNA polymerase
- c)DNA polymerase can only function in the 5’-3’ direction
- d)The primer reduces the energy required by the enzyme which can be used in other processes such as proofreading.
Correct answer is option 'A'. Can you explain this answer?
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Why does enzyme DNA polymerase needs a primer for synthesis of a new s...
DNA polymerase cannot synthesize a new strand de novo. The enzyme functions by adding the nucleotides to the free 3’-OH groups of the preexisting nucleotide. Thus a primer, which is a short strand of RNA or DNA consisting of 18-20 bases.
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Why does enzyme DNA polymerase needs a primer for synthesis of a new s...
Importance of Primer in DNA Polymerase Function
DNA polymerase requires a primer for the synthesis of a new DNA strand because:
- It can only add a nucleotide onto a pre-existing 3'-OH group: DNA polymerase is able to add nucleotides to a pre-existing 3'-OH group. The primer provides this 3'-OH group for DNA polymerase to start adding nucleotides.
- Primer reduces the energy required by the enzyme: The primer provides a starting point for DNA polymerase, reducing the energy required for the enzyme to initiate the synthesis of a new DNA strand.
- Primer contains the promoters: Promoters are specific sequences that help activate DNA polymerase. The primer contains these promoters, which are essential for the efficient functioning of DNA polymerase.
- DNA polymerase functions in the 5'-3' direction: DNA polymerase synthesizes a new DNA strand in the 5'-3' direction. The primer provides the necessary starting point for DNA polymerase to proceed in the correct direction.
In conclusion, the presence of a primer is crucial for DNA polymerase to efficiently and accurately synthesize a new DNA strand. It provides the necessary starting point, reduces the energy required for the enzyme, and contains essential promoters for the enzyme's function.
DNA polymerase requires a primer for the synthesis of a new DNA strand because:
- It can only add a nucleotide onto a pre-existing 3'-OH group: DNA polymerase is able to add nucleotides to a pre-existing 3'-OH group. The primer provides this 3'-OH group for DNA polymerase to start adding nucleotides.
- Primer reduces the energy required by the enzyme: The primer provides a starting point for DNA polymerase, reducing the energy required for the enzyme to initiate the synthesis of a new DNA strand.
- Primer contains the promoters: Promoters are specific sequences that help activate DNA polymerase. The primer contains these promoters, which are essential for the efficient functioning of DNA polymerase.
- DNA polymerase functions in the 5'-3' direction: DNA polymerase synthesizes a new DNA strand in the 5'-3' direction. The primer provides the necessary starting point for DNA polymerase to proceed in the correct direction.
In conclusion, the presence of a primer is crucial for DNA polymerase to efficiently and accurately synthesize a new DNA strand. It provides the necessary starting point, reduces the energy required for the enzyme, and contains essential promoters for the enzyme's function.
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Why does enzyme DNA polymerase needs a primer for synthesis of a new strand?a)it can only add a nucleotide onto a pre-existing 3-OH groupb)The primer contains the promoters which can activate DNA polymerasec)DNA polymerase can only function in the 5’-3’ directiond)The primer reduces the energy required by the enzyme which can be used in other processes such as proofreading.Correct answer is option 'A'. Can you explain this answer?
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Why does enzyme DNA polymerase needs a primer for synthesis of a new strand?a)it can only add a nucleotide onto a pre-existing 3-OH groupb)The primer contains the promoters which can activate DNA polymerasec)DNA polymerase can only function in the 5’-3’ directiond)The primer reduces the energy required by the enzyme which can be used in other processes such as proofreading.Correct answer is option 'A'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Why does enzyme DNA polymerase needs a primer for synthesis of a new strand?a)it can only add a nucleotide onto a pre-existing 3-OH groupb)The primer contains the promoters which can activate DNA polymerasec)DNA polymerase can only function in the 5’-3’ directiond)The primer reduces the energy required by the enzyme which can be used in other processes such as proofreading.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why does enzyme DNA polymerase needs a primer for synthesis of a new strand?a)it can only add a nucleotide onto a pre-existing 3-OH groupb)The primer contains the promoters which can activate DNA polymerasec)DNA polymerase can only function in the 5’-3’ directiond)The primer reduces the energy required by the enzyme which can be used in other processes such as proofreading.Correct answer is option 'A'. Can you explain this answer?.
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