The correct answer is A. DNA.
DNA is a molecule that contains the genetic information of an organism. It is made up of two strands of nucleotides that are twisted together in a double helix shape. The nucleotides are arranged in a specific order that codes for the production of proteins. Proteins are the building blocks of cells and are responsible for carrying out all of the functions of the cell.
The DNA molecule is located in the nucleus of the cell. The nucleus is a membrane-bound organelle that contains the cell’s genetic material. The nucleus is also responsible for regulating the cell’s activities.
The cell membrane is a thin layer that surrounds the cell. It is made up of lipids and proteins. The cell membrane protects the cell from the environment and allows nutrients and waste products to enter and exit the cell.
The cell membrane is not the site of genetic information storage.