Which statement about the nucleus is correct?

Which statement about the nucleus is correct?

• A. RNA
• B. Proteins
• C. DNA
• D. Carbohydrates

Answer: (C)

The nucleus is defined by containing the cell’s genetic material in the form of DNA. This long, double-helix molecule stores all the hereditary information and provides the instructions for building and regulating the cell. In eukaryotic cells, DNA is packaged with proteins into chromatin inside the nucleus and remains separated from the cytoplasm by the nuclear envelope. While RNA is produced there and proteins (like histones) are present as structural components, the primary substance housed in the nucleus is DNA. Carbohydrates are not a defining feature of the nucleus.

The nucleus is defined by containing the cell’s genetic material in the form of DNA. This long, double-helix molecule stores all the hereditary information and provides the instructions for building and regulating the cell. In eukaryotic cells, DNA is packaged with proteins into chromatin inside the nucleus and remains separated from the cytoplasm by the nuclear envelope. While RNA is produced there and proteins (like histones) are present as structural components, the primary substance housed in the nucleus is DNA. Carbohydrates are not a defining feature of the nucleus.