Home > 12: The Cell Cycle > Chapter Quiz
 
 
Chapter 12: The Cell Cycle
 
Chapter Quiz
 

Chapter Quiz


1 .       The person credited with first recognizing (in the 1860s) that living cells cannot arise spontaneously, but arise only from previously existing cells, is _____. (Overview E-Book) [Hint]

 Louis Pasteur
 Robert Hooke
 Rudolf Virchow
 Anton van Leeuwenhoek
 Watson
2 .       The function of the cell cycle is to produce daughter cells that _____. (Concept 12.1E-Book) [Hint]

 are genetically identical to the parent cell (assuming no mutation has occurred)
 have the same number of chromosomes as the parent cell but not the same genetic content
 have a random assortment of maternal and paternal chromosomes
 have the same number of chromatids as the parent cell had chromosomes
 none of the above
3 .       Sister chromatids _____. (Concept 12.1E-Book) [Hint]

 are created when DNA is replicated
 are attached at the centromere prior to division
 are separated during mitosis
 have matching copies of the chromosome's DNA
 all of the above
4 .       The complex of DNA and protein that makes up a eukaryotic chromosome is properly called _____. (Concept 12.1E-Book) [Hint]

 a chromatid
 a chloroplast
 chromatin
 a chromoplast
 a centrosome
5 .       The region of a chromosome holding the two double strands of replicated DNA together is called _____. (Concept 12.1E-Book) [Hint]

 chromatin
 a centriole
 a centromere
 a chromatid
 an aster
6 .       If an intestinal cell in a grasshopper contains 24 chromosomes, a grasshopper sperm cell would contain _____ chromosomes. (Concept 12.1E-Book) [Hint]

 3
 6
 12
 24
 48
7 .       The centromere is a region in which _____. (Concept 12.1E-Book) [Hint]

 chromosomes become aligned during metaphase
 microtubules are fastened to the centrioles during anaphase
 the new cell plate forms in telophase
 sister chromatids are attached to one another in prophase
 the chromosomes are connected to the cell plate in metaphase
8 .       How many maternal chromosomes are present in a somatic human cell in G1? (Concept 12.1E-Book) [Hint]

 23
 46
 92
 184
 none of the above
9 .       A cell entering the cell cycle with 32 chromosomes will produce two daughter cells, each with _____. (Concept 12.1E-Book) [Hint]

 16 chromosomes
 32 chromosomes
 32 pairs of chromosomes
 64 pairs of chromosomes
 none of the above
10 .       "Cytokinesis" refers to _____. (Concept 12.2E-Book) [Hint]

 division of the entire cell
 division of the nucleus
 division of the cytoplasm
 reduction in the number of chromosomes
 movement of a cell from one place to another
11 .       Chromatids are _____. (Concept 12.2E-Book) [Hint]

 found only in aberrant chromosomes
 held together by the centrioles
 identical copies of each other if they are part of the same chromosome
 the bacterial equivalent of eukaryotic chromosomes
 composed of RNA
12 .       If a cell contains 60 chromatids at the start of mitosis, how many chromosomes will be found in each daughter cell at the completion of the cell cycle? (Concept 12.2E-Book) [Hint]

 15
 30
 45
 60
 120
13 .       A biochemist measured the amount of DNA in cells growing in the laboratory and found that the quantity of DNA in the cells doubled _____. (Concept 12.2E-Book) [Hint]

 between prophase and anaphase
 between the G1 and G2 phases
 during the M phase of the cell cycle
 between the G2 phase and prophase
 between anaphase and telophase
14 .       A cell biologist carefully measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the G2 phase of the cell cycle contained 200 units of DNA. What would be the amount of DNA at G1 of the cell cycle in one of the grasshopper daughter cells? (Concept 12.2E-Book) [Hint]

 50 units
 100 units
 between 50 and 100 units
 200 units
 400 units
15 .       During interphase the genetic material of a typical eukaryotic cell is _____. (Concept 12.2E-Book) [Hint]

 dispersed in the nucleus as long strands of chromatin
 dispersed in the cytoplasm as long strands of chromatin
 condensed and the chromosomes are often visible under the light microscope
 attached to microtubule spindle fibers
 transported through the nuclear pores
16 .       DNA replication occurs in _____. (Concept 12.2E-Book) [Hint]

 prophase of both mitosis and meiosis
 metaphase of meiosis only
 the S phase of interphase in both somatic and reproductive cells
 the G1 phase of interphase in reproductive cells only
 the cytokinesis portion of the cell's life cycle
17 .       Chromatids form _____. (Concept 12.2E-Book) [Hint]

 during G1
 during G2
 during the S phase
 at the start of mitosis
 at the start of meiosis
18 .       If a somatic human cell is just about to divide, it has _____ chromatids? (Concept 12.2E-Book) [Hint]

 92
 23
 46
 0
 There is insufficient information to answer the question.
19 .       Which one of the following does not occur during, or because of, mitosis? (Concept 12.2E-Book) [Hint]

 the production of two genetically identical daughter cells
 condensed chromatin
 separation of chromatids
 replication of chromosomes
 alignment of chromosomes along the cell's equator


20 .       During what phase in the cell cycle would you find the most DNA per cell? (Concept 12.2E-Book) [Hint]

 G1
 G2
 S1
 S
 prophase II
21 .       In the telophase of mitosis, the mitotic spindle breaks down and the chromatin uncoils. This is essentially the opposite of what happens in _____. (Concept 12.2E-Book) [Hint]

 prophase
 interphase
 metaphase
 S phase
 anaphase
22 .       Which of the following phases of mitosis is essentially the opposite of prometaphase in terms of the nuclear envelope? (Concept 12.2E-Book) [Hint]

 telophase
 metaphase
 S phase
 interphase
 anaphase
23 .       Assume that you are dealing with a species in which the number of chromosomes in each somatic cell is 14. How many sister chromatids are present in the early telophase of mitosis? (Concept 12.2E-Book) [Hint]

 0
 7
 14
 28
 none of the above
24 .       At which point in the cell cycle do centrosomes begin to move apart to two poles of the cell in a dividing human skin cell? (Concept 12.2E-Book) [Hint]

 S phase
 G2 phase
 prophase
 metaphase
 anaphase
25 .       The phase of mitosis during which the chromosomes move toward separate poles of the cell is _____. (Concept 12.2E-Book) [Hint]

 telophase
 anaphase
 metaphase
 prophase
 prometaphase
26 .       One event occurring during prophase is _____. (Concept 12.2E-Book) [Hint]

 the beginning of the formation of a spindle apparatus
 the synthesis of a new nuclear envelope
 the alignment of chromosomes in a single plane
 cytokinesis
 division of the centromere
27 .       During anaphase of mitosis _____. (Concept 12.2E-Book) [Hint]

 the centromeres divide
 the centrioles are at opposite poles
 a spindle made of microtubules is present
 identical chromatids move to opposite poles
 all of the above
28 .       Which one of the following represents a mismatch or incorrect description? (Concept 12.2E-Book) [Hint]

 prophase: chromosomes become more tightly coiled
 metaphase: chromosomes line up on the equatorial plane
 metaphase: the nuclear envelope disappears
 anaphase: there is movement of the chromosomes to the poles
 telophase: chromosomes become more extended
29 .       Sister chromatids separate during _____. (Concept 12.2E-Book) [Hint]

 anaphase
 G1 phase
 G2 phase
 metaphase
 prophase
30 .       In animal cell mitosis, the cleavage furrow forms during _____. (Concept 12.2E-Book) [Hint]

 anaphase
 G1 phase
 cytokinesis
 metaphase
 prophase
31 .       At which stage of mitosis are chromosomes lined up in one plane in preparation for their separation to opposite poles of the cell? (Concept 12.2E-Book) [Hint]

 prophase
 metaphase
 anaphase
 telophase
 interphase
32 .       You would know a dividing cell was a plant cell rather than an animal cell if you saw that _____. (Concept 12.2E-Book) [Hint]

 it had formed a cell plate
 it had two pairs of centrioles during prophase
 it had microtubules
 the nucleolus was visible during metaphase
 it had formed a cleavage furrow
33 .       Which one of the following processes does not occur in dividing bacteria? (Concept 12.2E-Book) [Hint]

 replication of DNA
 separation of the origins of replication
 mitosis
 binary fission
 inward growth of the plasma membrane
34 .       During binary fission in a bacterium _____. (Concept 12.2E-Book) [Hint]

 the two DNA molecules float free in the cell and are guided to daughter cells by a spindle-like apparatus
 the origins of replication move apart
 the two DNA molecules divide in half, forming four DNA fragments
 the two DNA molecules attach to the centrioles
 the two DNA molecules break up into plasmids
35 .       Binary fission in bacterial cells involves _____. (Concept 12.2E-Book) [Hint]

 prophase, prometaphase, metaphase, anaphase, and telophase
 disintegration of the nuclear membrane
 distribution of a copy of the single parental chromosome to each daughter cell
 formation of a cell plate
 formation of a spindle apparatus
36 .       When a cell in S phase is fused with a cell in G1, _____. (Concept 12.3E-Book) [Hint]

 DNA synthesis begins immediately in the original G1 nucleus
 the replication of DNA occurring in the original S nucleus is terminated
 the two nuclei fuse and further division is arrested
 the chromosomes of the original G1 nucleus condense in preparation for mitosis
 the original G1 cell will divide immediately
37 .       Tissue culture experiments with PDGF demonstrate that without this substance _____. (Concept 12.3E-Book) [Hint]

 bacterial cells lose their resistance to antibiotics
 cells divide in an uncontrolled fashion, confirming its role as a cell division inhibitor
 fibroblasts fail to divide
 animal cells are unable to attach to the substratum
 the various kinases, such as MPF, are unable to bind to cyclin
38 .       You would be unlikely to see which of the following human cells dividing? (Concept 12.3E-Book) [Hint]

 nerve cell
 skin cell
 cancer cell
 cell from an embryo
 intestinal lining cell
39 .       Observations of cancer cells in culture support the hypothesis that cancer cells _____. (Concept 12.3E-Book) [Hint]

 do not exhibit density-dependent inhibition
 produce molecules that inhibit the growth factors required for cell division
 exhibit anchorage dependence
 spend the majority of their time in the G0 phase
 do all of the above
40 .       What is the difference between a benign tumor and a malignant tumor? (Concept 12.3E-Book) [Hint]

 Benign tumors arise by transformation; malignant tumors do not.
 Cells of benign tumors do not metastasize; those of malignant tumors do.
 Cells of benign tumors metastasize; those of malignant tumors do not.
 Benign tumors will not kill you; malignant tumors will.
 Benign tumors do not arise by transformation; malignant tumors do.





©2005 Pearson Education, Inc., publishing as Benjamin Cummings