Question

1. what is a nucleotide made up of?

Explanation:

Nucleotides are the building blocks of nucleic acids (DNA and RNA). They consist of three main components: a nitrogen - containing base (such as adenine, thymine, cytosine, guanine in DNA and adenine, uracil, cytosine, guanine in RNA), a pentose sugar (deoxyribose in DNA and ribose in RNA), and a phosphate group.

Answer:

A nucleotide is made up of a nitrogen - containing base, a pentose sugar, and a phosphate group.