1. Chapter 8 Cell division Review

2. The phase of the cell cycle in which cells stop dividing all together.
This spot that holds the 2 chromatid copies together is called a ______________________
centromere
The phase of the cell cycle
in which cells stop dividing all together. G0

3. Phase of the cell cycle in which DNA is copied
Cell division in bacteria cells is called
_______________________
Binary fission
Phase of the cell cycle in which
DNA is copied
S (synthesis)

4. cyclins Phase of the cell cycle
The proteins that control the cell cycle
cyclins
Phase of the cell cycle
in which the nuclear membrane is present and DNA is spread out into chromatin.
interphase

5. Type of cell division in eukaryotic cells that results in 2 identical daughter cells.
mitosis
List the phases of mitosis in order starting with prophase.
Prophase, metaphase, anaphase, telophase, cytokinesis

6. Phase of mitosis that follows anaphase
telophase
Phase of the cell cycle that follows G2
Mitosis (prophase)

7. This cell is in __________________
This network of fibers that attach and pull the chromosomes apart is called the
mitotic ______________
spindle
This cell is in __________________
prophase

8. G1, S, and G2 make up this phase of the cell cycle.
interphase
Area near the nucleus that contains the centrioles and helps to organize spindle formation ______________
centrosome

9. The place in the cell membrane of an animal cell that pinches in during cytokinesis is called a
____________________
cleavage furrow
Plant cells can’t pinch to divide, instead they form a _______________
to divide.
cell plate

10. This phase of the cell cycle is ______________
anaphase
Part of interphase in which the cell grows to mature size and carries
out its job. G1

11. Phase of mitosis that follows prophase
metaphase
Phase of the cell cycle that follows S G2

12. Phase of the cell cycle cell’s spend most of their time in.
This phase of the
cell cycle is
________________
metaphase
Phase of the cell cycle cell’s spend
most of their time in.
G1 of interphase

13. One of 2 identical arms that make up a replicated chromosome
Disorder in which body cells lose their ability to control cell division
cancer
One of 2 identical arms that make up a replicated chromosome
chromatid

14. DNA that is all spread out in an interphase nucleus is called ________________
chromatin
Phase of mitosis in which the nuclear membrane and nucleolus disappear and the DNA scrunches into chromosomes.
prophase

15. In this part of interphase, cells make the molecules and organelles needed for cell division

16. These structures at the poles which attach to the spindle fibers and pull the chromosomes.
centrioles
The cell above is in ______phase
meta

17. One of 2 identical arms that make up a chromosome
When chromatin scrunches together it is called a _________________
chromosome
One of 2 identical arms that make up a chromosome
chromatid

18. Phase of mitosis that followes metaphase
anaphase
Phase of the cell cycle that follows G1 S

19. This cell is in ___________ anaphase
Phase of cell division in which the nuclear membrane returns and chromosomes spread out into chromatin.
telophase

20. This cell is in __________ telophase
The cell above is a _________ cell.
animal plant
Plant
You can see the cell plate forming in center instead of a cleavage furrow.

21. Substance that causes cancer
carcinogen
Phase of the cell cycle after S phase in which cells make the molecules and organelles needed for cell division G2

22. The very first dividing phase is _______________
Phase of mitosis in which chromatids separate and move to opposite ends of the cell.
anaphase
The very first dividing phase is _______________
prophase

23. List the phases of mitosis in order starting with interphase
Phase of the cell cycle where cells spend most of their time. They grow bigger and they do their job as body cells. G1
List the phases of mitosis in order starting with interphase
prophase, metaphase, anaphase, telophase

24. This is called a ______________ Cleavage furrow
This cell is _____________ cell.
an animal a plant
an animal Plants don’t have cleavage furrows.

25. Phase of mitosis where the cytoplasm splits into 2
CYTOKINESIS
Name the phases of the cell cycle in order starting with G1
G1 S G2 M C

26. Prophase (P) Metaphase (M) Anaphase (A) Telophase (T)
Interphase (I)
INTERPHASE
________________ DNA is all spread out as chromatin and nuclear membrane is visible
________________ DNA scrunches up and chromosomes are first visible
________________ Made up of G1, S, G2
________________ Chromosomes line up in middle of cell
PROPHASE
INTERPHASE
METAPHASE

27. _______________ DNA is copied and cell prepares to divide
Prophase (P) Metaphase (M) Anaphase (A) Telophase (T)
Interphase (I)
_______________ DNA is copied and cell prepares to divide
_______________ Chromatid arms separate and move to opposite ends of the cell
_______________ Chromosomes unwind into chromatin & nucleus returns
_______________ Nuclear membrane & nucleolus disappear
INTERPHASE
ANAPHASE
TELOPHASE
PROPHASE

28. __________________ Two nuclei are visible
Prophase (P) Metaphase (M) Anaphase (A) Telophase (T)
Interphase (I)
TELOPHASE
__________________ Two nuclei are visible
__________________ First dividing phase
___________________ Centrosomes containing centrioles & spindle fibers appear next to nucleus
__________________Cytoplasm is split between two cells
_________________ Spindle fibers and centrioles disappear
PROPHASE
PROPHASE
CYTOKINESIS
TELOPHASE

29. G0 M S G1 G2 G0 Mitosis (M) Cytokinesis (C) G1
_______ Cell is reading the DNA code and
“doing its job”
_______ Cell makes a copy of its DNA
_______ Cells leave the cell cycle and stop dividing
_______ Division of chromosomes happens S G0 M

30. G2 M S G1 G2 G0 Mitosis (M) Cytokinesis (C) C
_______ Division of cytoplasm happens
_______ Cell makes the molecules and organelles needed for cell division
_______ Made up of telophase, anaphase, prophase, and metaphase G2 M

31. What stage of mitosis is this cell in?
Telophase

32. What stage of mitosis is this cell in?
Metaphase

33. What stage of mitosis is this cell in?
Prophase

34. What stage of mitosis is this cell in?
Anaphase

35. What stage of mitosis is this cell in?
Interphase

36. The advantage of sexual reproduction and crossing over during Prophase 1 is .
genetic diversity

37. Gonads
Meiosis takes place in the
Mitosis results in the formation of identical cells called cells.
Meiosis results in the formation of cells called cells. 2
Daughter 4
Gametes

38. All cells in the human body except gametes have. chromosomes and
All cells in the human body except gametes have chromosomes and homologous pairs.
All cells are diploid.
All gametes are . 46 23
Somatic
Haploid

39. In meiosis, each cell divides twice but replication occurs only once producing haploid cells.
During meiosis, when do homologous pairs of chromosomes line up on the equator? 4
Metaphase I

40. During meiosis, when do homologous chromosomes split apart from each other and move towards opposite poles?
The diploid number is always times the haploid number.
Anaphase I 2

41. Nondisjuntion occurs during
and results in the wrong # of in the gametes.
Anaphase I
Chromosomes

42. List 5 differences between mitosis and meiosis.
Meiosis Mitosis
# of divisions
# of cells made 4 (haploid) 2 (dipoid)
Prophase I homologous chromosomes no tetrad formed
form a tetrad
Metaphase I homologous pairs line all chromosomes line up
up on the equator on the equator
Anaphase I homologous pairs split chromatids split and
& move towards move towards opposite poles opposite poles

43. THE END