In target theory, the master molecule is located in which cellular compartment?

In target theory, the master molecule is located in which cellular compartment?

• A. Cytoplasm
• B. Mitochondrion
• C. Nucleus
• D. Cell membrane

Answer: (C)

The main idea here is that the critical target in many cellular-damage models is the molecule that holds genetic instructions—DNA. DNA is the master set of instructions for building and regulating the cell, so its location is key to understanding how cellular life is controlled. In eukaryotic cells, DNA is housed in the nucleus, the compartment enclosed by the nuclear envelope that serves as the control center for gene expression and replication. That central repository explains why the nucleus is the correct location. Other compartments don’t carry the entire genetic blueprint in one place: the cytoplasm is where metabolism and protein synthesis happen, mitochondria contain some genetic material of their own but not the full master set, and the cell membrane is just the boundary of the cell.

The main idea here is that the critical target in many cellular-damage models is the molecule that holds genetic instructions—DNA. DNA is the master set of instructions for building and regulating the cell, so its location is key to understanding how cellular life is controlled. In eukaryotic cells, DNA is housed in the nucleus, the compartment enclosed by the nuclear envelope that serves as the control center for gene expression and replication. That central repository explains why the nucleus is the correct location. Other compartments don’t carry the entire genetic blueprint in one place: the cytoplasm is where metabolism and protein synthesis happen, mitochondria contain some genetic material of their own but not the full master set, and the cell membrane is just the boundary of the cell.