Question

What are the basic building blocks of DNA and RNA?

nucleotides
phosphorous
proteins
sugar

Answer 1

A. Nucleotides

Step-by-step explanation:

Just had it on a test!

Answer 2

Nucleotides.

Step-by-step explanation:

Nucleotides are molecules of monomer units which is made up of 3 components: five carbon sugar ( Ribose in RNA and Deoxyribose in DNA), Nitrogen containing bases ( Purine and Pyrimidine) and a phosphate group.

DNA has 4 nitrogen bases : Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). In RNA instead of Thymine (T), Uracil (U) is present.