Tiny tube-like structures made of protein. They stretch across the cell from the centrioles that have moved to opposite ends of the cell.
What are Spindle Fibres?
100
This is where the X-shaped chromosomes get tugged to.
What is the middle (or equator) of the cell.
100
These begin to contract and shorten.
What are the spindle fibres?
100
One complete set of chromosomes is now here.
What are the poles of the cell?
100
The process in which the contents of the cell's nucleus divides.
What is Mitosis?
200
During Early Prophase, these coil up into X-shaped chromosomes and become visible under a light microscope.
What is replicated chromosomes?
200
These make a tugging action to put the X-shaped chromosomes into a single line.
What are spindle fibres?
200
This allows the sister chromatids to move to opposite poles of the cell.
What is the centromere being pulled apart?
200
This forms around each set of chromosomes.
What is a nuclear membrane?
200
The number of stages in the cell cycle.
What is 3?
300
During this stage, the spindle fibres complete forming. The chromosomes attach to the spindle fibres at their centromeres, and the nuclear membrane disappears.
What is Late Prophase?
300
This holds together the sister chromatids which make up the X-shaped chromosomes.
What is a centromere?
300
Once they separate, they are considered to be their own chromosome.
What is each sister chromatid?
300
After this appears in the nucleus, there are two nuclei in one cell, and the cell is ready to divide.
What is the nucleolus?
300
The result of the division of the contents of the cell's nucleus.
What is two daughter nuclei?
400
This happens when an unduplicated chromatid turns into two identical sister chromatids.
What is Duplication Movement?
500
These stages are the first and last phases of the cell cycle.