Question

a zebra cell is just about to replicate its dna
what will happen first?

the dna unravels to make 2 strands

rna attaches to dna

all of the cell’s dna attaches to proteins

Explanation:

In DNA replication, the first step is the unwinding (unraveling) of the double - helix DNA structure to form two single strands. RNA attachment to DNA is part of transcription, not replication. And DNA attaching to proteins in this context is not the first step of DNA replication. So the correct option is the one stating that the DNA unravels to make 2 strands.

Answer:

The DNA unravels to make 2 strands (the first option with the blue - filled circle)