Question:
Among the following statements, which is/are TRUE regarding the replication of DNA?
Among the following statements, which is/are TRUE regarding the replication of DNA?
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DNA replication is semiconservative, bidirectional, and semi-discontinuous. Remember: leading strand = continuous; lagging strand = discontinuous.
Updated On: Sep 1, 2025
- Replication is bidirectional and conservative in nature.
- Replication in eukaryotes takes place at multiple Ori sites simultaneously.
- Both the strands replicate in discontinuous manner.
- Both the strands replicate in semiconservative manner.
Show Solution
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The Correct Option is B, D
Solution and Explanation
- (A) Incorrect: Replication is semiconservative, not conservative. Each daughter DNA has one parental and one new strand.
- (B) Correct: Eukaryotic DNA replication initiates from multiple origins of replication (Ori sites) simultaneously to speed up replication of large genomes.
- (C) Incorrect: Replication is semi-discontinuous, not fully discontinuous. Leading strand is continuous, lagging strand is discontinuous (Okazaki fragments).
- (D) Correct: DNA replication is universally semiconservative.
\fbox{Therefore, the correct answer is (B) and (D).}
- (B) Correct: Eukaryotic DNA replication initiates from multiple origins of replication (Ori sites) simultaneously to speed up replication of large genomes.
- (C) Incorrect: Replication is semi-discontinuous, not fully discontinuous. Leading strand is continuous, lagging strand is discontinuous (Okazaki fragments).
- (D) Correct: DNA replication is universally semiconservative.
\fbox{Therefore, the correct answer is (B) and (D).}
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