Final answer:
All four groups of organic molecules require genetic instructions because they carry the cell's genetic blueprint and instructions for its functioning.
Step-by-step explanation:
All four groups of organic molecules require genetic instructions because they carry the cell's genetic blueprint and carry instructions for its functioning. Nucleic acids, such as DNA and RNA, are the most important macromolecules for the continuity of life as they carry the genetic information that determines the structure and function of proteins and other cellular components. Genetic instructions are necessary for the synthesis of proteins, which are essential for various biological processes, including catalyzing chemical reactions and forming the structure of cells and tissues.