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- 1. Multiple Choice
What is the purpose the the cell cycle checkpoints?
To prevent damaged cells before from dividing.
To remove damaged cells from an organism.
- 2. Multiple Choice
How many cell cycle checkpoints are there?
1
2
3
4
- 3. Multiple Choice
What is the first checkpoint of the cell cycle?
Mitosis checkpoint
G1 checkpoint
G2 checkpoint
S checkpoint
- 4. Multiple Choice
Uncontrolled cell division is stopped by...
cell cycle checkpoints
cancer
- 5. Multiple Choice
This is the cell cycle checkpoint that makes sure environmental conditions are ideal for cell division.
G1 Checkpoint
G2 Checkpoint
M Checkpoint
I Checkpoint
- 6. Multiple ChoiceThis is the cell cycle checkpoint that makes sure DNA has been replicated correctly during S phase.G1 CheckpointG2 CheckpointM CheckpointI Checkpoint
- 7. Multiple Choice
This is the cell cycle checkpoint that makes sure the correct number of chromosomes are present and attached to spindle microtubules.
G1 Checkpoint
G2 Checkpoint
M Checkpoint
I Checkpoint
- 8. Multiple ChoiceThe checkpoints that regulate the cell cycle can fail when ____ becomes damaged.DNACell MembraneMitochondriaRibosomes
- 9. Multiple Choice
Correct order of the 4 checkpoints of the cell cycle
Anaphase checkpoint, mitosis/metaphase checkpoint, and telophase checkpoint, interphase checkpoint
Interphase checkpoint, S phase checkpoint, and M phase checkpoint, mitosis/metaphase checkpoint
G1 checkpoint, G2 checkpoint, mitosis/metaphase checkpoint, and S phase checkpoint
G1 checkpoint, S checkpoint, G2 checkpoint, and mitosis/metaphase checkpoint
- 10. Multiple Choice
✓ No DNA damage
✓ Sufficient resources
G1 checkpoint
S checkpoint
G2 checkpoint
M checkpoint
- 11. Multiple Choice
The cell increases in size and prepares to replicate its DNA.
G1
S
G2
M
- 12. Multiple Choice
Rest or divide?
G1 checkpoint
S checkpoint
G2 checkpoint
M checkpoint
- 13. Multiple Choice
The cell replicates its DNA. At the end of this phase, the cell has two complete sets of DNA.
G1
S
G2
M
- 14. Multiple Choice
✓ DNA without damage
✓ Chromosome set complete
✓ Enough cell components
G1 checkpoint
S checkpoint
G2 checkpoint
M checkpoint
- 15. Multiple Choice
✓ All sister chromatids attached to mitotic spindle
G1 checkpoint
S checkpoint
G2 checkpoint
M checkpoint
- 16. Multiple ChoiceWhich term below means "cancer cells can travel/spread to other parts of the body?"angiostasisangiostatinmetastasizetumor
- 17. Multiple ChoiceA cancer causing agent is best known as a(n)_______.carcinogenmutationinheritancemetastasis
- 18. Multiple ChoiceWhich of the following can lead to uncontrolled cell growth (cancer)?Proto-oncogeneOncogeneTumor suppressor geneDNA repair system
- 19. Multiple Choice
A gene that protects a cell from becoming cancerous.
oncogene
proto-oncogene
tumor suppressor gene
apoptosis
- 20. Multiple Choice
How does the concentration of cyclin change as a cell goes through the cell cycle?Cyclin concentration remains constant.Cyclin concentration increases during interphase and decreases during mitosis.Cyclin concentration decreases during interphase and increases during mitosis.Cyclin concentration is inversely related to MPF concentrations. - 21. Multiple ChoiceThe normal function of a tumor suppressor gene isto produce growth signalsto code for proteins that inhibit, or slow, cell divisionto cause the cell to move faster through the cell cycleto attack cancer cells in the body
- 22. Multiple Choice
Oncogenes
are mutated forms of tumor suppressor genes
are mutated forms of genes that code for proteins that normally assist in apoptosis
are mutated genes the inhibit the cell cycle
are mutated genes that code for proteins which activate cell division too often or at the improper time
- 23. Multiple ChoiceWhich of the following is a type of protein that regulates the cell cycle?actinmyosincyclinpepsin
- 24. Multiple ChoiceWhat is the cell cycle?The gradual development of something, especially from a simple to a more complex form.The study of heredity and the variation of inherited characteristics.The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.The series of events that take place in a cell leading to its division and duplication of its DNA to produce two daughter cells.
- 25. Multiple ChoiceWhich part of the Cell Cycle takes the longest?InterphaseMitosisProphaseCytokinesis
- 26. Multiple Choice
What part of the cell cycle results in the splitting of the cells?
Interphase
Mitosis
Metaphase
Cytokinesis
- 27. Multiple ChoiceTrue or False.
After a cell goes through cytokinesis, it starts mitosis all over again.TrueFalse - 28. Multiple ChoiceWhat phase is this cell in?CytokinesisMitosisProphaseMetaphase
- 29. Multiple ChoiceWhat phase is this cell in?MitosisInterphaseAnaphaseTelophase
- 30. Multiple ChoiceWhat phase is this cell in?MitosisCytokinesisProphaseTelophase
- 31. Multiple ChoiceWhat phase is this cell in?MitosisInterphaseProphaseTelophase
- 32. Multiple ChoiceWhat is the longest phase in MITOSIS?ProphaseMetaphaseInterphaseAnaphase
- 33. Multiple ChoiceIn what phase do the chromosomes line up in the middle of the cell?CytokinesisMetaphaseProphaseTelophase
- 34. Multiple ChoiceIn what phase does chromatin condense to form chromosomes?MitosisInterphaseProphaseAnaphase
- 35. Multiple ChoiceIn what phase do the chromosomes get pulled apart into sister chromatid to opposite sides of the cell?ProphaseInterphaseMetaphaseAnaphase
- 36. Multiple ChoiceThe division of the nucleus is known as:SynthesisMitosisG1G2
- 37. Multiple Choice
The individual halfs of replicated chromosomes are called_____________
Centromeres
Daughters
Chromatids
Chromatin
- 38. Multiple ChoiceWhen a plant cell goes through cell division, _____________.the 2 new nuclei are separated by the cell membrane pinching off.4 new cells are formeda cell plate forms, dividing the 2 new nucleiNone of the above
- 39. Multiple ChoiceA human cell has 46 chromosomes before mitotic division. How many chromosomes will the daughter cells after mitosis.12234692
- 40. Multiple ChoiceName the phase:AnaphaseTelophaseMetaphaseProphase
- 41. Multiple ChoiceName the phase:ProphaseMetaphaseAnaphaseTelophase
- 42. Multiple ChoiceName the phase:ProphaseMetaphaseAnaphaseTelophase
- 43. Multiple ChoiceName the phase:ProphaseMetaphaseAnaphaseTelophase
- 44. Multiple ChoiceThe stages of mitosis in orderMetaphase, Anaphase, Prophase, TelophaseProphase, Anaphase, Metaphase, TelophaseProphase, Metaphase, Anaphase, TelophaseAnaphase, Prophase, Telophase, Metaphase
- 45. Multiple ChoiceThe structures labeled B arecentrioleschromatidscentromereschromopheres
- 46. Multiple ChoiceWhich phase comes NEXT?prophasemetaphaseanaphasetelophase
- 47. Multiple ChoiceName the phase:ProphaseMetaphaseAnaphaseTelophase
- 48. Multiple ChoiceName the phase:ProphaseMetaphaseAnaphaseTelophase
- 49. Multiple Choice
A nucleosome is best described as
nucleosomes coiled around each other
a DNA strand wrapped around histone proteins
one fully-packaged DNA molecule
one strand of DNA double-helix
- 50. Multiple Choice
Chromosomes are made of... (Choose all that apply.)
DNA
proteins
carbohydrates
lipids
- 51. Multiple Choice
Histone core means
Set of 8 histone proteins
Set of 4 histone proteins
Set of 2 histone proteins
None
- 52. Multiple Choice
Wrapping of negatively charged DNA around positively charged histone octamer is called
Nucleosome
Chromatin
Chromosome
Histone
- 53. Multiple Choice
String of repeating nucleosome is called
Chromatin
Chromosome
Chromatid
Octamer
- 54. Multiple Choice
Part of chromosome where kinetochores attach
Telomere
Centromere
Centrosome
Origin of replication
- 55. Multiple Choice
At what part of the cell cycle would you see a chromosome that looks like this?
G1
G2
M
S
- 56. Multiple Choice
If you were given a slide and told that the cells on it were performing cytokinesis, how would you tell if you had plant cells or animal cells?
Look for a cell plate or a cleavage furrow.
Look for condensed or decondensed chromosomes.
Look for an intact or a dispersed nuclear membrane.
Look for more or less layers in the cell wall.
- 57. Multiple Choice
Mass of rapidly dividing cells that can damage surrounding tissue.
growth factor
human growth hormone
cancer
tumor
- 58. Multiple Choice
Which is a function of cyclins?
Cyclins are carbohydrates that regulate DNA replication during the mitosis phase of the cell cycle.
Cyclins are glycoproteins that repair DNA in the beginning of cell cycle.
Cyclins are proteins that regulate when and how often a cell divides.
- 59. Multiple ChoiceA cancerous tumor is calledbenignmalignantapoptosiscyclin
- 60. Multiple ChoiceNon-cancerous tumors are called _____. Cancerous tumors are called _____.metastatic ; malignantmalignant ; benignbenign ; malignantbenign ; metastatic
- 61. Multiple ChoiceThe spreading of cancerous cells is calledmetastasiscarcinogenesisangiogenesishomeostasis
- 62. Multiple Choice
Apical meristems can be found in
The leaves
The tips of the shoots and roots
The xylem cells
The epidermal cells
- 63. Multiple ChoiceWhich tissue allows plants to develop wider stems and roots?phloemxylemLateral meristemsapical meristems
- 64. Multiple Choice
How many cell cycle checkpoints are there?
1
2
3
4
- 65. Multiple ChoiceNormal cell division is regulated by...Proto-oncogenesoncogenes
- 66. Multiple ChoiceWhich of the following statements is true?Proto-oncogenes cause a loss of control of the cell cyclethe products of oncogenes may inhibit the cell cycletumor-suppressor-gene products inhibit the cell cyclea mutation in a proto-oncogene may convert it into a tumor suppresor gene
- 67. Multiple ChoiceThis is the cell cycle checkpoint that makes sure DNA has been replicated correctly during S phase.G1 CheckpointG2 CheckpointM CheckpointI Checkpoint
- 68. Multiple ChoiceThis is the cell cycle checkpoint that makes sure the correct number of chromosomes are present and attached to microtubules.G1 CheckpointG2 CheckpointM CheckpointI Checkpoint
- 69. Multiple ChoiceThe causes of cancer may include which of the following?chemical carcinogensUV radiationinheritanceall of these
- 70. Multiple ChoiceThe mitotic index shows.....the percentage of cells in a sample that are undergoing mitosisthe percentage of cells in a sample that are undergoing meiosisthe percentage of cells in a sample that have cancerthe percentage of cells in a sample that are in apoptosis
- 71. Multiple ChoiceIf a sample of 600 cells has 90 cells in some stage of mitosis, the mitotic index would be....6.67%15%66.7%0.15%
- 72. Multiple Choice
Body cell 'Q' had a normal mitotic index of 9.3%. However, scientists measured an increase in the mitotic index to 22.7%. This increase could NOT be explained as....
a normal increase in cell division due to the cell increasing it's mitotic rate
an abnormal increase in cell division due to mutations in the DNA
a normal increase in cell division due to damage/death of nearby cells
an abnormal increase in cell division due to the cell 'blowing through' its checkpoints
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