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The okazaki fragments in DNA chain growth

1. polymerize in the 3’ - to - 5’ direction and forms replication fork
2. prove semi-conservative nature of DNA replication
3. polymerize in the 5’ - to - 3’ direction and explain 3’ - 5’ DNA replication
4. result in transcription

Correct answer: polymerize in the 5’ - to - 3’ direction and explain 3’ - 5’ DNA replication

Solution

Okazaki fragments are synthesized on the lagging strand in short segments, but each segment is still built in the 5’ to 3’ direction. Their existence shows why one template strand is copied discontinuously, making the overall replication appear opposite on that strand.

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