Question

16 the pictures below are snapshots of dna replication. order by putting the first stage of dna replication at the top, and the final stage of dna replication at the bottom.

Explanation:

To order the DNA replication stages, recall the process: 1. Initiation (Unwinding): The original double - helix DNA (the fifth image, a single double helix) starts to unwind. 2. Elongation Start: The DNA helix partially unwinds with a small replication bubble (the second image, with a small unwound region). 3. Elongation Progress: The replication bubble grows as new strands are synthesized (the fourth image, with a larger unwound region and some new strand synthesis). 4. Further Elongation: More of the new strands are formed (the third image, with more of the new double - helices). 5. Termination: Two complete double - helixes are formed (the first image, two separate double helices). So the order from first (top) to final (bottom) is the fifth image, second image, fourth image, third image, first image.

Answer:

1. The image with a single DNA double helix (fifth one)
2. The image with a small unwound DNA region (second one)
3. The image with a moderately unwound DNA and some new strands (fourth one)
4. The image with more new DNA strands formed (third one)
5. The image with two complete DNA double helices (first one)