I think it’s either the first or last one
I THINK ITS B. HOPE I HELPED
Answer:
yes it is.... because the chemical has now changed it form
Explanation:
DNA is a group of nucleotides that are linked together. The hydrogen bonds are responsible in making the double helix structure stable. The two strands of DNA are linked and stays in a stable shape because of the hydrogen bonds located between adenosine and thymine base pairs. Three hydrogen bonds are between cytosine and guanine.