Replication fork encounters a single-strand gap
Replication continues as the lesion is bypassed
Answer Bank
DNA polymerase makes two copies from the unbroken template strand and patches the gap.
The 5' end of the unwound DNA is displaced.
The crossed-over strands are resolved; a gap remains in one duplicated strand.
A helicase unwinds the newly synthesized DNA at the break.
The 3' end of the unwound DNA is displaced.
The displaced DNA aligns itself with the complementary bases on the other arm of the replication fork.
The displaced 5' end is a primer for DNA polymerase, and replication continues in the crossed-over strands.
The displaced 3' end is a primer for DNA polymerase, and replication continues in the crossed-over strands.