Which process is primarily responsible for the division of prokaryotic cells?

Which process is primarily responsible for the division of prokaryotic cells?

• A. Mitosis
• B. Binary fission
• C. Meiosis
• D. Budding

Answer: (B)

Binary fission is the primary method by which prokaryotic cells, such as bacteria, reproduce and divide. During this process, the cell growth involves the replication of its DNA, followed by the elongation of the cell. Eventually, the cell membrane pinches inward, leading to the division of the cytoplasm and the formation of two genetically identical daughter cells. This process is efficient and allows for rapid population growth, which is particularly advantageous in the right environments.

In contrast, mitosis and meiosis are processes characteristic of eukaryotic cells. Mitosis leads to the division of somatic cells, ensuring that each daughter cell receives a complete set of chromosomes, while meiosis is necessary for the production of gametes, involving genetic recombination and reduction in chromosome number. Budding is a form of asexual reproduction observed in some organisms, where a new individual grows out from the parent organism; this is not typical in prokaryotes. Thus, binary fission is unique to prokaryotic cell division.