Which statement best explains how mitosis in eukaryotic cells differs from binary fission in prokaryotic cells?

• A. Mitosis produces genetically different daughter cells through recombination, whereas binary fission produces genetically identical daughter cells.
• B. Mitosis occurs in prokaryotes to divide their circular chromosome, whereas binary fission occurs in eukaryotes to divide their nucleus.
• C. Mitosis replicates DNA after the cell divides, whereas binary fission replicates DNA only after cytokinesis is complete.
• D. Mitosis segregates multiple linear chromosomes using a microtubule-based spindle and is followed by cytokinesis, whereas binary fission replicates a single circular chromosome and separates copies as the cell elongates and divides without a mitotic spindle.

Answer: (D)

Verified step by step guidance

1. Understand that mitosis and binary fission are both processes of cell division but occur in different types of cells: mitosis in eukaryotic cells and binary fission in prokaryotic cells.
2. Recognize that eukaryotic cells have multiple linear chromosomes, while prokaryotic cells typically have a single circular chromosome.
3. Note that mitosis involves the formation of a microtubule-based spindle apparatus that helps segregate the multiple linear chromosomes into two daughter nuclei before the cell divides.
4. Understand that binary fission does not involve a mitotic spindle; instead, the single circular chromosome is replicated and the cell elongates to separate the two copies before dividing.
5. Conclude that the key difference lies in the complexity of chromosome structure and segregation mechanisms: mitosis uses a spindle to separate multiple chromosomes, while binary fission replicates and separates a single chromosome as the cell divides.