Question

at the end of replication, a chromosome with two identical dna strands is formed. reading check cite textual evidence how is the separation of dna like a zipper?

Explanation:

In DNA replication, the two - strand structure of DNA unwinds. Just like a zipper has two sides that separate to open, the two complementary strands of DNA separate at the hydrogen - bonds between the base pairs. Enzymes such as helicase break these hydrogen bonds, 'unzipping' the DNA molecule to expose the single - stranded templates for new strand synthesis.

Answer:

In DNA replication, enzymes like helicase break the hydrogen bonds between base - pairs, separating the two complementary strands of DNA, similar to how a zipper's two sides separate to open.