Question

Mitosis unfolds through a sequence of stages marked by specific events in the cell. The structural changes in the cell are about by a series of tightly coordinated underlying mechanisms.

Sort each process into the appropriate bin to indicate the stage of mitosis in which it occurs. If a process occurs in more than one stage, sort it to the stage when it first occurs.

• Cohesins join sister chromatids of duplicated chromosome.
• Tubulins assemble into spindle microtubules.
• Microtubules attach to kinetochores.
• Spindle microtubules disassemble.
• Kinetochores are motionless in relation to poles of cell.
• Kinetochores move toward poles of cell.

 

 

Answer 1

Prophase:

-Tubulins assemble into spindle microtubules

-Cohesins join sister chromatids of duplicated chromosomes

 

Prometaphase:

-Microtubules attach to kinetochores

 

Metaphase:

-Kinetochores are motionless in relation to cell poles

 

Anaphase:

-Kinetochores move toward poles of the cells

-Cohesins break down

 

Telophase:

-Spindle microtubules disassemble