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Assertion: DNA replication in prokaryotes starts from a single origin of replication.
Reason: Prokaryotic genomes are circular in nature.
Both Assertion and Reason are true and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true but Reason is not the correct explanation for Assertion.
Assertion is true but Reason is false.
Assertion is false but Reason is true.
Answers (1)
In prokaryotes, DNA replication starts from a single origin of replication. This is because the prokaryotic genome is circular in nature. The replication starts at a specific point on the circular genome and proceeds in two directions, eventually meeting on the opposite side of the circular genome.
The circular nature of the prokaryotic genome necessitates the presence of a single origin of replication because replication has to start at a specific point and proceed in both directions until it meets on the opposite side. Therefore, both the assertion and reason are true, and the reason correctly explains the assertion.
Option 1 is the correct answer.
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