Which organelle contains genetic material and works with ribosomes in protein synthesis?

• A. Nuclear Membrane
• B. Endoplasmic Reticulum
• C. Golgi Bodies
• D. Chromosomes (DNA)

Answer: (D)

Genetic material is stored in DNA, which is organized into chromosomes inside the nucleus. The information in DNA is transcribed into messenger RNA in the nucleus, and ribosomes use that mRNA to assemble amino acids into proteins. So the chromosomes, which carry the DNA, are the source of the genetic instructions that ribosomes rely on to build proteins.

Other options don’t fit because the nuclear membrane is just a boundary around the nucleus and doesn’t itself contain genetic material; the endoplasmic reticulum is where ribosomes synthesize proteins but it doesn’t house DNA; the Golgi apparatus packages and processes proteins but doesn’t contain genetic material.