Question

drag each tile to the correct box.
arrange these steps of dna replication in the order in which they occur.
rna primase synthesizes rna primer, which attaches itself at the initiation point.
polymerase begins synthesizing the new strands.
single - strand binding proteins prevent the strands from snapping back to the original dna structure.
ligase joins the okazaki fragments.
helicase unwinds the parent dna strand.

Explanation:

1. First, helicase unwinds the parent DNA strand to separate the two strands.
2. Then, single - strand binding proteins bind to the separated strands to prevent them from re - annealing.
3. Next, RNA primase synthesizes an RNA primer which provides a starting point for DNA synthesis.
4. After that, DNA polymerase begins synthesizing the new DNA strands (leading and lagging strands; the lagging strand is synthesized as Okazaki fragments).
5. Finally, ligase joins the Okazaki fragments on the lagging strand to form a continuous strand.

So the order is:

1. Helicase unwinds the parent DNA strand.
2. Single - strand binding proteins prevent the strands from snapping back to the original DNA structure.
3. RNA primase synthesizes RNA primer, which attaches itself at the initiation point.
4. Polymerase begins synthesizing the new strands.
5. Ligase joins the Okazaki fragments.

Answer:

1. Helicase unwinds the parent DNA strand.
2. Single - strand binding proteins prevent the strands from snapping back to the original DNA structure.
3. RNA primase synthesizes RNA primer, which attaches itself at the initiation point.
4. Polymerase begins synthesizing the new strands.
5. Ligase joins the Okazaki fragments.