Stages of Cell Cycle
Vocabulary
Mitosis
Meiosis
Differences
100
Cell cytoplasm divides
What is cytokinesis?
100
Long, thin fibers of DNA and proteins. "Stringy DNA"
What is chromatin?
100
Chromosomes are unwinding and become enclosed in the nucleus, and the cell begins to divide
What is telophase?
100
Chromosomes before meiosis = 46. Chromosomes at end of meiosis in each cell =
What is 23?
100
Plant cells use this to divide in cytokinesis.
What is a cell plate?
200
DNA replicates
What is the S phase?
200
One half of a duplicated chromosome
What is a sister chromatid?
200
Chromosomes are lined up on the cell's equator
What is metaphase?
200
The phase where crossing over occurs.
What is Prophase I?
200
This forms when the cell membrane of an animal cell pinches in during cytokinesis.
What is a cleavage furrow?
300
Mitosis and cytokinesis make up this portion of the cell cycle.
What is cell division?
300
Holds two sister chromatids together
What is a centromere?
300
The cell's chromosomes become visible, the nuclear membrane disappears, and the centrioles move to opposite sides of the cell
What is prophase?
300
The phase where sister chromatid separate and become chromosomes.
What is Anaphase II?
300
Fill in the blank: Mitosis results in two diploid cells, meiosis results in four ______ cells.
What is haploid?
400
The stage that includes G1, S, and G2
What is interphase?
400
A structure consisting of two homologous chromosomes and 4 chromatid that form at the beginning of meiosis.
What is a tetrad?
400
Chromatids are pulled apart and become individual chromosomes
What is anaphase?
400
Phase where homologous chromosomes align at the middle of the cell?
What is Metaphase I?
400
How many more phases are in meiosis than mitosis?
What is 4?
500
Cell preparation for division occurs
What is the G2 phase?
500
Regulatory protein of the cell cycle.
What is cyclin?
500
Spindle fibers appear and attach to centromeres
What is prophase?
500
After Interphase the cell had 46 chromosomes. At the end of Meiosis I there are two cells. Each cell has ____ chromosomes and _____ chromatid.
What are 23 chromosomes and 46 chromatid?
500
Uncontrolled cell growth
What is cancer?
M
e
n
u