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Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori?
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Assertion: The replication does not initiate randomly at any place in ...
Assertion is correct...
whereas reason is neither correct nor the correct explanation of assertion....
prokaryotes have single ORI... eukaryotes have multiple ORI
whereas reason is neither correct nor the correct explanation of assertion....
prokaryotes have single ORI... eukaryotes have multiple ORI
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Assertion: The replication does not initiate randomly at any place in ...
Origin of Replication in DNA
There is a definite region in DNA where the replication originates, known as the origin of replication. This is the site where the replication machinery binds and starts the process of copying the DNA molecule.
Multiple ori in Bacterial DNA
In bacterial DNA, there are multiple origins of replication (ori). Bacterial genomes are usually circular, so they have multiple ori sites to ensure efficient and timely replication of the entire genome. This is important for the rapid growth and division of bacterial cells.
Single ori in Eukaryotic DNA
On the other hand, eukaryotic DNA typically contains only a single origin of replication. The larger and more complex structure of eukaryotic genomes necessitates a more controlled and regulated process of replication. The presence of a single ori helps in coordinating the replication of the entire genome in a precise manner.
Regulation of Replication
The initiation of replication is a tightly regulated process in both bacteria and eukaryotes. In eukaryotic cells, the origin recognition complex (ORC) binds to the origin of replication and initiates the assembly of the pre-replication complex. This complex then unwinds the DNA and starts the replication process.
Conclusion
Therefore, while the replication of DNA does not initiate randomly at any place, the presence of a specific origin of replication ensures the accurate and efficient duplication of the genetic material. The differences in the number of ori sites between bacterial and eukaryotic DNA reflect the unique structural and regulatory requirements of each type of genome.
There is a definite region in DNA where the replication originates, known as the origin of replication. This is the site where the replication machinery binds and starts the process of copying the DNA molecule.
Multiple ori in Bacterial DNA
In bacterial DNA, there are multiple origins of replication (ori). Bacterial genomes are usually circular, so they have multiple ori sites to ensure efficient and timely replication of the entire genome. This is important for the rapid growth and division of bacterial cells.
Single ori in Eukaryotic DNA
On the other hand, eukaryotic DNA typically contains only a single origin of replication. The larger and more complex structure of eukaryotic genomes necessitates a more controlled and regulated process of replication. The presence of a single ori helps in coordinating the replication of the entire genome in a precise manner.
Regulation of Replication
The initiation of replication is a tightly regulated process in both bacteria and eukaryotes. In eukaryotic cells, the origin recognition complex (ORC) binds to the origin of replication and initiates the assembly of the pre-replication complex. This complex then unwinds the DNA and starts the replication process.
Conclusion
Therefore, while the replication of DNA does not initiate randomly at any place, the presence of a specific origin of replication ensures the accurate and efficient duplication of the genetic material. The differences in the number of ori sites between bacterial and eukaryotic DNA reflect the unique structural and regulatory requirements of each type of genome.
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Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori?
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Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori?.
Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: The replication does not initiate randomly at any place in DNA and there is a definite region in DNA where the replication originates which is termed as origin of replication. Reason: In bacterial DNA, there are multiple ori but in eukaryotic DNA, there is only a single ori?.
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