The regular sequence of of growth and division that cells undergo is know as this.
What is the cell cycle?
100
During this phase of mitosis, the chromosomes line up across the center of the cell, and each chromosome attaches to a spindle fiber at its centromere, which still holds the chromatids together.
What is metaphase?
100
In a DNA molecule, guanine always pairs with this molecule?
What is cytosine?
100
This is the process by which a cell makes a copy of the DNA in its nucleus.
What is replication? or What is DNA replication?
100
This forms around the chromatids during mitosis.
What are two new nuclei?
200
These are the names of the three stages of the cell cycle.
What are interphase, mitosis, and cytokinesis?
200
During this phase of mitosis, the chromatin in the nucleus condenses to form chromosomes; structures called spindle fibers form a bridge between the ends of the cell; and the nuclear membrane breaks down.
What is prophase?
200
In a DNA molecule, thymine always pairs with this molecule?
What is adenine?
200
During DNA replication, cytosine always pairs with this molecule?
What is guanine?
200
The final stage of the cell cycle, during which the cytoplasm divides is called this.
What is cytokinesis?
300
This is the stage during the cell cycle when the cell's nucleus divides into two new nuclei.
What is mitosis?
300
During this phase of mitosis, the chromosomes begin to stretch out and lose their rodlike appearance; this occurs in the two regions at the ends of the cell; and a nuclear membrane forms around each region of chromosomes.
What is telophase?
300
Each rung of the DNA ladder is made of these.
What are a pair of nitrogen bases?
300
During DNA replication, adenine always pairs with this molecule?
What is thymine?
300
The phases of mitosis in order from when they begin after interphase are these.
What are prophase, metaphase, anaphase, and telophase?
400
These are what are formed during cytokinesis after the pinching part of the process occurs in animal cells.
What are two new daughter cells?
400
During this stage of mitosis, the centromeres split; the two chromatids separate; one chromatid moves along the spindle fiber to one end of the cell; the other chromatid moves to the opposite end; and the cell becomes stretched out as the opposite ends pull apart.
What is anaphase?
400
The sides of the DNA ladder are made of molecules of deoxyribose and this other molecule?
What is phosphate?
400
The complimentary DNA strand that would be made during replication for the nitrogen bases A-C-C-T-G would look like this.
What is T-G-G-A-C?
400
These are identical strands of chromosomes.
What are chromatids?
500
A cell makes a copy of its DNA during this stage of the cell cycle.
What is interphase?
500
These are the other two stages of the cell cycle which some think are part of mitosis, but they are not.
What are interphase and cytokinesis?
500
Since it twists like the threads of a screw, a DNA molecule is often called this.
What is a double helix?
500
The complimentary DNA strand that would be made during replication for the nitrogen bases G-C-G-T-A would look like this.