What are the basic building blocks of dna and rna? nucleotides phosphorous proteins sugar

Nucleotides.

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.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.