How many nuclear pores are present in a typical differentiated cell, such as RBCs?
Correct answer: D. About 3-4 per nucleus
- A. About 3,000 per nucleus
- B. About 1-2 per nucleus
- C. About 30,000 per nucleus
- D. About 3-4 per nucleus
Explanation
The number of nuclear pores is more in undifferentiated cells as compared to differentiated cells. Since RBCs are fully differentiated cells, they have 3-4 nuclear pores, but the number of nuclear pores in egg cells is about 30,000.
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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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