Which macromolecules provide instructions for growth

Nucleic acids.

Explanation:

Nucleic acids are macromolecules made up of nucleotides that form two important cell components, DNA and RNA. They are called this because they are acidic and found in the nucleus of the cell. Nucleic acids are essential for all cells, because it is from the DNA and RNA molecules that proteins are synthesized, the cells multiply and the mechanism of transmission of hereditary characteristics still occurs. They are also the macromolecules responsible for the instructions for growth.

In addition, nucleotides are important in several processes, such as the synthesis of some carbohydrates and lipids and the regulation of intermediate metabolism, activating or inhibiting enzymes.

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a