The correct sequence for the phases of mitosis is: b) Prophase - Prophase - Metaphase - Anaphase – Telophase. Therefore , b) Prophase - Prophase - Metaphase - Anaphase – Telophase is correct .
Mitosis is the process of cell division that results in the formation of two identical daughter cells.
The process is divided into several distinct phases, each characterized by specific events.
Prophase: This is the first phase, where chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down.
The mitotic spindle, composed of microtubules, starts to form.
Prometaphase: In this phase, the nuclear envelope completely breaks down, and the spindle fibers attach to the centromeres of the chromosomes.
Chromosomes are now fully condensed and become more visible.
Metaphase: Chromosomes align along the cell's equator, known as the metaphase plate.
Spindle fibers are fully formed, and each chromosome is attached to microtubules from opposite poles.
Anaphase: Centromeres split, and sister chromatids are pulled apart toward opposite poles of the cell by the shortening of spindle fibers.
This ensures that each daughter cell will receive an identical set of chromosomes.
Telophase: Chromatids reach the opposite poles and de-condense back into chromatin. A new nuclear envelope forms around each set
Question
The correct sequence for the phases of mitosis is:
a) Prophase - prophase - anaphase - metaphase – telophase.
b) Prophase - prophase - metaphase - anaphase – telophase.
c) Prometaphase - prophase - metaphase - anaphase – telophase.
d) Metaphase - anaphase - interphase - prophase – telophase