Question

The separation of daughter chromosomes takes place at
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Answer 1

During Anaphase the sister chromatids if each chromosome separates and moves towards the opposite poles. When chromatids reach the opposite poles, then the chromatids are referred to as chromosomes.

Complete answer
Cell is a living entity and undergoes cell division for preparing its copies. Cell division starts with the end of the longest phase of interphase. Interphase in which a cell prepares itself for the division by synthesizing desired proteins.
Prophase: It is the phase during which the genetic material condenses to form chromosomes. The nuclear envelope fades away. Centromere appears in the center or chromosome separating out sister chromatids. This stage is followed by Metaphase.
Metaphase is the second stage of cell division in which the chromosomes line up in the center at the imaginary equator of the cell before the sister chromatids separate out with each other. This stage of cell division is followed by Anaphase.
Anaphase is the third stage of cell division. Spindle fiber originating from the centrosome at the polar end passes through the centromere and pulls the sister chromatids towards the polar end. Kinetochore shortens in size after the chromatids move towards the end. This stage of cell division is followed by Telophase.
Telophase is the last stage of cell division in which the nuclear membrane reappears around the nucleus. Karyokinesis is followed by cytokinesis resulting in the formation of two daughter cells with the same genetic material.

Hence the correct answer is option “C”, Anaphase.

Note: Prophase is marked by the initiation of condensation of chromosomal material. In Metaphase, chromosomes are moved to the spindle equator and get aligned along the metaphase plate through spindle fibres to both poles. During anaphase, chromatids move to opposite poles. In telophase, chromosomes reach their respective poles, decondense and lose their individuality. All the above mentioned four stages are included under Karyokinesis event of mitosis.