Question

Separation of daughter chromosomes occurs during

• A. cytokinesis
• B. karyokinesis
• C. S phase
• D. $G_2$ phase

Answer 1

The correct option is B karyokinesis

During karyokinesis, there is separation of daughter chromosomes. The daughter chromosomes move to opposite poles and nuclear envelope forms around them and thus two nuclei are formed.

Cytokinesis is the division of cytoplasm resulting in two daughter cells and occurs post karyokinesis.

The cell is in $G_1$ phase, followed by S phase and then $G_2$ phase before cell division. In the S phase, there is replication of DNA. In the $G_2$ phase, proteins needed for cell division are synthesized by cells.