Question

what is #2 in the nucleic acid below called. *

Explanation:

In nucleic acids (like DNA), the pentose sugar in DNA is deoxyribose. The structure shown is likely DNA (double - helix structure). Phosphate is represented by circles, nitrogenous bases (like cytosine, thymine) are the rectangular - like structures. Glucose is not part of nucleic acid structure. Ribose is the sugar in RNA. Deoxyribose is the sugar in DNA, which fits the pentose (five - carbon) sugar component (labeled as 2 in a typical nucleotide structure of DNA where a nucleotide has a phosphate, a deoxyribose sugar, and a nitrogenous base).

Answer:

deoxyribose