Question

1. why is dna called a macromolecule by scientists? because the nucleotide bases in dna contain nitrogen atoms which make it large because dna is made of one large, complex molecule of sugar because dna is a massive polymer that contains many different parts because purines and pyrimidines connect in dna to make it a large molecule

Explanation:

DNA is a macromolecule because it is a polymer made up of many nucleotides (sugar - phosphate backbone and nitrogen - containing bases). It is large and complex with many different components.

Answer:

because DNA is a massive polymer that contains many different parts