Which term contains the cell's genetic material and acts as the control center?

• A. Cytoplasm
• B. Nucleus
• C. Endoplasmic reticulum
• D. Ribosome

Answer: (B)

The nucleus holds the cell’s genetic material and acts as the control center by directing which genes are read and when, guiding the production of proteins that determine the cell’s activities. In eukaryotic cells, DNA is stored inside the nucleus, organized into chromosomes, and the nucleus regulates gene expression to keep the cell functioning properly. The cytoplasm is the surrounding area where many processes happen, but it doesn’t house the genetic material. The endoplasmic reticulum handles making and modifying proteins and lipids. The ribosome builds proteins based on messages from the DNA but doesn’t contain genetic material itself. So the term that fits both storing genetic material and serving as the control center is the nucleus.