The lagging strand, downstream of the Okazaki fragment, is covered in single-stranded binding proteins (SSBPs) during DNA replication. What is the mechanism which ensures that SSBPs are removed from the lagging strand to allow for the binding of the next Okazaki fragment?
Actually, there has been some evidence that the SSBPs keep the bases facing outwards so DNA polymerase can still replicate the lagging strand with the SSBPs on them. There has also been other evidence that they can pop off spontaneously.
You can learn more about this by watching the lectures on https://www.edx.org/course/molecular-biology-part-1-dna-replication-and-repair