Which of the following are duplicated during cell division in a human cell?

• A. Ribosomes
• B. Cell membrane
• C. Chromosomes
• D. Mitochondria

Answer: (C)

Verified step by step guidance

1. Understand the context of cell division: In human cells, cell division occurs through a process called mitosis, which ensures that each daughter cell receives an identical set of chromosomes.
2. Identify the key components involved in cell division: During mitosis, the primary focus is on the duplication and segregation of chromosomes to ensure genetic material is accurately distributed to daughter cells.
3. Differentiate between cell components: Chromosomes are structures within the cell nucleus that contain DNA. They are duplicated during the S phase of the cell cycle to ensure each daughter cell receives a complete set of genetic information.
4. Clarify the role of other cell components: Ribosomes, cell membranes, and mitochondria are essential for cell function but are not specifically duplicated during mitosis. Instead, they are distributed between daughter cells as the cell divides.
5. Conclude with the correct answer: The primary focus of duplication during cell division is on chromosomes, as they carry the genetic information necessary for the functioning and reproduction of cells.