Which of the following contains the genetic material of the cell?

Mitochondria are known as the powerhouse of the cell because they generate ATP through cellular respiration. While they do contain their own small amount of DNA, it is distinct from the nuclear DNA and is not the primary genetic material of the cell. Their role is primarily focused on energy production rather than genetic information storage.

The endoplasmic reticulum (ER) is involved in the synthesis of proteins and lipids. It facilitates the production and transport of these macromolecules but does not contain genetic material. The ER functions as a site for translation and processing of proteins based on the instructions encoded in the DNA found within the nucleus.

The cell membrane is a lipid bilayer that surrounds the cell, providing structure and regulating the movement of substances in and out of the cell. It does not contain any genetic material; rather, it plays a role in protecting the cell and facilitating communication with its environment.