AP Biology (Mader), 11th Edition

Chapter 9: The Cell Cycle and Cellular Reproduction

Post-Test

1
Cell division in unicellular organisms results in ____ daughter cells that are genetically identical to the parent cell.
A)4
B)2
C)1
D)8
2
Which best describes prokaryotes?
A)Unicellular bacteria and archaea
B)Prominent nucleus and other membrane bound organelles
C)Many chloroplasts
D)Divides by mitosis and cytokinesis
3
Chromosomes are composed of _____.
A)DNA only
B)proteins only
C)DNA and proteins
4
Prokaryotes primarily reproduce _____.
A)by binary fission
B)sexually
C)by meiosis
5
If a cell with 46 chromosomes undergoes mitosis, the daughter cells will have _____ chromosomes.
A)23
B)46
C)92
6
Sister chromatids are held together at the:
A)Centromere
B)Spindle
C)Aster
D)Centriole
7
The _____ most likely provide(s) the material for spindle formation.
A)nucleus
B)cytoskeleton
C)sister chromatids
D)plasma membrane
8
Which of the following is NOT associated with prophase?
A)Fragmentation of the nuclear envelope
B)Disappearance of the nucleolus
C)Separation of the sister chromatids
D)Visible chromosomes
9
After _____ nuclear division is completed.
A)prophase
B)metaphase
C)telophase
D)interphase
10
Alignment of the duplicated chromosomes at the 'equator' of the cell is characteristic of _____.
A)metaphase
B)prophase
C)anaphase
D)telophase
11
What statement correctly describes cytokinesis in plant cells?
A)The plant cell forms a contractile ring which contracts, pinching the cell in two.
B)Microtubules are laid down in a plywood-like cell plate pattern.
C)The Golgi apparatus produces vesicles that migrate along microtubules and fuse to become a cell plate, which then releases new cell wall materials.
D)The plasma membrane is constricted to form a cleavage furrow.
12
DNA replicates during the________ stage of interphase.
A)mitotic
B)G1
C)G2
D)S
13
New methods of cancer treatment prevent _____, which cuts off the supply of nutrients and oxygen to the tumor.
A)metastasis
B)angiogenesis
C)differentiation
D)anaplasia
14
A disorganized, generally encapsulated mass that does not invade adjacent tissue is known as a _____.
A)neoplasia
B)benign tumor
C)anaplasia
15
Which represents the correct sequence of stages in the cell cycle?
A)G1, G2, S, M
B)G1, G2, M, S
C)G1, M, G2, S
D)G1, S, G2, M
16
The p53 protein _____.
A)inhibits repair enzymes
B)stops the cell cycle during repair
C)inhibits apoptosis
D)promotes angiogenesis
17
Programmed cell death is known as _____.
A)mitosis
B)cytokinesis
C)apoptosis
18
It is estimated that over half of cancers occur when _____ is absent or nonfunctional.
A)the p53 gene
B)survivin
C)angiogenesis
19
If the diploid chromosome number of an organism is 30, the haploid number of the gametes is___________.
A)30
B)60
C)15
D)10
20
When mutations occur in proto-oncogenes, they become cancer causing genes called ______.
A)tumor suppressor genes
B)oncogenes
C)stem cells
D)haploid cells
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