What is the role of the kinetochore spindle fibers during mitosis?
Correct answer: C. It helps separate the chromosomes
- A. It duplicates the DNA
- B. It divides the cell in half
- C. It helps separate the chromosomes
- D. It provides energy
Explanation
The kinetochore serves as the attachment point for spindle microtubules, facilitating the movement and alignment of chromosomes during cell division. It regulates the tension and attachment stability between the chromosomes and the spindle apparatus, ensuring accurate segregation of genetic material. Additionally, kinetochores signal the cell cycle checkpoints to ensure proper progression through mitosis and prevent errors in chromosome segregation. Thus, kinetochores play a critical role in orchestrating the precise and orderly division of cells.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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