Question

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

Answer 1

Hint: 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
The cell cycle after the long interphase cell enters into the mitotic division phase. The M phase of Cell division phase is divided into 4 sub phases, Prophase, Metaphase, Anaphase and Telophase.
Prophase is the very first stage of cell division during which the genetic material begins to condense to form Chromosomes. Each chromosome consists of a sister chromatid which is joined with centromere. The nuclear envelope breaks down at this stage. This stage is followed by Metaphase.
Metaphase is the second stage of cell division in which the nucleus disappears and the chromosomes line up at the equator. The spindle fiber originating from the centrosome connects passing through the centromere. This stage is followed by Anaphase.
Anaphase is the third stage of Cell division during which the sister chromatids separate out and move towards the polar end of the cell. Kinetochore gets shorter as the chromatids move towards the polar end. Anaphase is followed by telophase.
Telophase is the last stage of cell division. As the chromatids move apart the cytokinesis begins which leads to the formation of daughter cells. The nuclear envelope reforms and Chromatids uncoil to form genetic material.

The correct answer is “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.