Which statement is true about cytokinesis?

Which statement is true about cytokinesis?

• A. Division of the nucleus during cell division
• B. Division of the cytoplasm during cell division
• C. Formation of new chromosomes
• D. Reformation of the cell membrane after division

Answer: (B)

Cytokinesis is the division of the cytoplasm, which completes cell division by producing two separate daughter cells after the nucleus has divided. In animal cells, a contractile actin ring creates a contractile ring that pinches the cell membrane inward, forming a cleavage furrow and splitting the cytoplasm. In plant cells, vesicles derived from the Golgi coalesce to form a cell plate that eventually becomes separating cell membranes, allowing the cytoplasm to divide. The division of the nucleus is a separate process called mitosis (or karyokinesis), not cytokinesis. Forming new chromosomes happens earlier, during DNA replication and mitosis, not during the cytoplasmic division stage. The reformation of the cell membrane occurs as part of cytokinesis, but the defining feature of cytokinesis is the actual split of the cytoplasm into two cells.

Cytokinesis is the division of the cytoplasm, which completes cell division by producing two separate daughter cells after the nucleus has divided. In animal cells, a contractile actin ring creates a contractile ring that pinches the cell membrane inward, forming a cleavage furrow and splitting the cytoplasm. In plant cells, vesicles derived from the Golgi coalesce to form a cell plate that eventually becomes separating cell membranes, allowing the cytoplasm to divide. The division of the nucleus is a separate process called mitosis (or karyokinesis), not cytokinesis. Forming new chromosomes happens earlier, during DNA replication and mitosis, not during the cytoplasmic division stage. The reformation of the cell membrane occurs as part of cytokinesis, but the defining feature of cytokinesis is the actual split of the cytoplasm into two cells.