A ____ is an organized form of DNA.

_____ is unorganized DNA.

Letter A is a _____.

Letter B is the _____.

What structure helps move the chromosomes to opposite sides of the cell?

The cytoplasm divides in _____.

A _____ forms in a plant cell during cytokinesis.

A ____ divides the cytoplasm in the animal cell during cytokinesis.

Why do cells divide? Check all that apply.

The function of mitosis is to divide the _____.

In what phase does the cell grow and prepare for DNA synthesis?

In what phase does the DNA replicate?

In what phase does the cell grow and prepare for mitosis?

What disappears in prophase? Check all that apply.

What appears in prophase? Check all that apply.

The DNA is in the form of ____ in prophase.

The chromosomes line up in the middle of the cell during ____.

In what phase do the microtubules shorten to pull the chromosomes apart?

The DNA is in the form of ____ in telophase.

What structures disappear in telophase? Check all that apply.

What structures appear in telophase? Check all that apply.

What best describes the cell at the end of telophase?

The cell cycle starts with one ____ cell.

The cell cycle ends with two ____ cells.

True/False: The purpose of the cell cycle is to create two identical daughter cells.

True/False: The cell cycle is driven by specific signaling molecules present in the cytoplasm.

The ____ checkpoint checks to make sure that cell growth is sufficient to move on to the next phase.

The ____ checkpoint checks to make sure that the DNA has replicated correctly.

The ____ checkpoint checks to make sure mitosis has correctly divided the chromosomes.

Cylins begin to form in the ____ phase.

Cyclin dependent kinase is an _____.

The cell needs enough _____ to move past the G2 checkpoint.

True/False: Cyclin degrades after anaphase.

True/False: CDK breaks down after anaphase.

What are the components found in MPF?

____ are proteins released by certain cells that stimulate other cells to divide.

_____ is an external factor that affects cell division. This factor tells cells that are too crowded to stop dividing.

_____ are genes that code for the production of cyclin proteins.

____ are genes that code for proteins that signal cells when they are getting too crowded to stop division.

A cell that has 20 chromosomes enters the cell cycle. At the end of the cell cycle there will be ___ cells each with ____ chromosomes.