This macromolecule (large) is used to carry genetic information. It's building block is called a nucleotide.

Explanation:

Nucleic acids are long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.

answer; ///i believe that the correct answer is (e); check first good

it has one origin of replication, but it proceeds in two directions - d)