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- 1. Multiple Choice
Before a cell can proceed to mitosis from the gap 2 stage of the cell cycle, it must -
double in size
complete a full cell cycle
undergo cytokinesis
pass a critical checkpoint
- 2. Multiple Choice
Which statement describes the chromosome shown below
it is made up of two histones
it is made up of two chromatids
it is made up of two centromeres
it is made up of two telomeres
- 3. Multiple Choice
Which of the following is true of malignant tumors?
They do not require treatment
They are easily removed through surgery
They can cause tumors in other parts of the body
They contain cells that stay clustered together
- 4. Multiple Choice
What does a cell make during the synthesis stage of the cell cycle?
more organelles
a copy of DNA
daughter cells
more surface area
- 5. Multiple Choice
The Gap 1, Synthesis, and Gap 2 stages of the cell cycle make up
interphase
prophase
telophase
cytokinesis
- 6. Multiple Choice
What does DNA polymerase do during replication?
binds nucleotides together and corrects base pair errors
transmits messages that are translated into proteins
attracts amino acids to the ribosomes for assembly
recognizes and points out new origins of replication
- 7. Multiple Choice
Which of the following is not a reason cells divide?
The cell gets too big to process and transport nutrients
New cells are needed for growth
DNA cannot be copied quickly enough in large cells
Surface area-to-volume ratio becomes too large
- 8. Multiple Choice
The region of a chromosome where two sister chromatids are held together is called a
spindle
centromere
nucleosome
centriole
- 9. Multiple Choice
The phase of the cell cycle that occupies most of an average cell’s life is -
interphase
prophase
metaphase
cytokinesis
- 10. Multiple Choice
What occurs after cytokinesis is completed?
The cell organizes its microtubules
The cell begins to replicate its DNA
The cell enters G1
The cell enters G2
- 11. Multiple Choice
Refer to the illustration above. Mitosis begins with which stage?
1
2
3
4
- 12. Multiple Choice
As a result of mitosis, each of the two new cells produced from the parent cell -
receives a few chromosomes from the parent cell
receives an exact copy of all the chromosomes present in the parent cell
donates a chromosome to the parent cell
receives exactly half the chromosomes from the parent cell
- 13. Multiple Choice
Normal cells become cancer cells when
regulation of cell growth and division occurs
cells respond to control mechanisms
cells pass through G1
cells do not respond to checkpoints
- 14. Multiple Choice
The attachment of nucleotides to form a complementary strand of DNA during replication
is accomplished by DNA polymerase
is accomplished only in the presence of tRNA
prevents separation of complementary strands of RNA
is the responsibility of the proofreading enzymes
- 15. Multiple Choice
Which disease is caused by a problem in the regulation of the cell cycle?
cancer
Down syndrome
diabetes
sickle cell anemia
- 16. Multiple Choice
Which of the following shows the correct sequence of the cell cycle?
cytokinesis --> mitosis --> G1 --> S --> G2
S --> G1 --> G2 --> mitosis --> cytokinesis
G1 --> S --> G2 --> mitosis --> cytokinesis
mitosis --> G1 --> S --> G2 --> cytokinesis
- 17. Multiple Choice
The first three phases of the cell cycle are collectively known as
interphase
mitosis
cytokinesis
cell division
- 18. Multiple Choice
A spindle fiber is a specialized form of
microtubule
centrosome
centriole
chromosome
- 19. Multiple Choice
The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called
telophase
metaphase
anaphase
prophase
- 20. Multiple Choice
Refer to the illustration. The cell in diagram 1 is in which phase of the cell cycle?
prophase
metaphase
anaphase
interphase
- 21. Multiple Choice
Refer to the illustration above. Which of the following correctly indicates the order in which these events occur?
A, B, C, D
C, B, A, D
B, A, C, D
A, C, B, D
- 22. Multiple Choice
Refer to the illustration. During which stage do the centromeres divide?
A
B
C
D
- 23. Multiple Choice
Cytokinesis in plant cells involves the formation of -
a belt of protein threads
a cell plate
spindle fibers
centrioles
- 24. Multiple Choice
Which of the following statements is true?
Prokaryotes divide by mitosis
Eukaryotes have circular chromosomes
Animal cells form new cell walls when they divide
Plant cells and animal cells have different strategies for cytokinesis
- 25. Multiple Choice
The cell cycle is monitored as each cell passes through
S phase
checkpoints
interphase
cytokinesis
- 26. Multiple Choice
Which statement best describes the end result of this process?
two new DNA molecules are formed, each identical to the original
new molecules of mRNA are transcribed from the DNA molecule
a protein molecule is synthesized from the code in the DNA molecule
the new DNA molecules are made from opposite DNA strands so they are not identical
- 27. Multiple Choice
If a cell is exposed to a chemical that inhibits the production of spindle fibers as the cell is preparing for mitosis, what would most likely happen?
the cell would continue with mitotic division
the cell would undergo meiotic division
the cell would break open
the cell would not divide
- 28. Multiple Choice
At the end of the mitotic cell cycle, a cell divides into two cells. What must happen before the cell divides?
the number of organelles triples
chromosomes must be copied
four nuclei must be formed
the membrane thickens
- 29. Multiple Choice
A scientist studied human skin cells as they produced two genetically identical daughter cells from a parent cell. The scientist mapped the steps as shown. Which of the following did the scientist map in this scenario?
fertilization
meiosis
crossover
mitosis
- 30. Multiple Choice
At concentrations of 0.1 - 1 ug/ml colchicine, a natural plant product, can cause the mitotic arrest of dividing cells at metaphase through disrupting the spindle apparatus. Colchicine interferes with which of these cell functions during cell division?
microtubule organization of spindle fibers
DNA synthesis of spindle protein
membrane transport of spindle fibers
RNA synthesis of spindle protein
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