Question

DNA is a nucleic acid polymer composed of which repeating structural unit?

1. nucleotides
2. phosphate groups
3. ribosomes
4. proteins ​

Answer 1

2 phospahte groups

Step-by-step explanation:

Answer 2

Answer: 1

Explanation: It is 1) Nucleotides :D Nucleic acids are polymers, which are large molecules made up of smaller, repeating units that are chemically connected to one another. DNA is composed of repeating units called nucelotides or nucleotide bases.

I hope this helps =3