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Mitosis And Meiosis - ChAPters 12-13 - AP Biology

40 Questions  I  By Muitran
mitosis and meiosis - chAPters 12-13 - AP biology

  
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1.  Which of the following is missing from the life cycle progression shown below?  sporophyte-meiosis-spore-________-gametophyte-mitosis-gametes- fertilization-zygote
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B.
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D.
E.
2.  Select the term below that is most closely related to this phrase: released by platelets in the vicinity of an injury     A.    PDGF     B.    MPF     C.    protein kinase     D.    cyclin     E.    Cdk
3.  Match the following key event of meiosis with one of the stages listed below: Synapsis of homologous pairs occurs; crossing over may occur.     I.    prophase I       V.    prophase II     II.   metaphase I    VI.    metaphase II     III.   anaphase I     VII.    anaphase II     IV.  telophase I     VIII.    telophase II
4.  Select the term below that is most closely related to this phrase: The cyclin component of MPF is destroyed toward the end of this phase.     A.    G0     B.    G1     C.    S     D.    G2     E.    M
5.  If there are 20 chromatids in a cell, how many centromeres are there?
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B.
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6.  You isolate DNA from three different cell types of an organism, determine the relative DNA content for each type, and plot the results on the graph shown here: If the cells were from a plant, which sample might represent a gametophyte cell?
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B.
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D.
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7.  What is a chromatid?
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8.  In the figure above, mitosis is represented by which number?
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9.  What causes the decrease in the amount of cyclin at a specific point in the cell cycle?
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10.  You isolate DNA from three different cell types of an organism, determine the relative DNA content for each type, and plot the results on the graph shown here: Which sample might represent an animal cell in G2 phase of the cell cycle?
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B.
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11.  If the cell whose nuclear material is shown above continues toward completion of mitosis, which of the following events would occur next?
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12.  Taxol is an anticancer drug extracted from the Pacific yew tree. In animal cells, taxol disrupts microtubule formation by binding to microtubules and accelerating their assembly from the protein precursor, tubulin. Surprisingly, this stops mitosis. Specifically, taxol must affect
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13.  Match the following statement with one of the statements below: Centromeres uncouple and chromatids are separated from each other.     A.    The statement is true for mitosis only.     B.    The statement is true for meiosis I only.     C.    The statement is true for meiosis II only.     D.    The statement is true for mitosis and meiosis I.     E.    The statement is true for mitosis and meiosis II.
14.  Referring to a plant sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes?
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15.  Which of the following is false regarding the bacterial chromosome?
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16.  For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes?
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17.  You isolate DNA from three different cell types of an organism, determine the relative DNA content for each type, and plot the results on the graph shown here: During mitosis, diploid cells go from what number to what number?
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B.
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D.
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18.  Cytoskeletal elements play important roles in cell division.  The mitotic spindle apparatus is made of ________ and pulls sister chromatids apart, whereas the contractile ring is made of ________ and required for the separation of daughter cells at the end of the mitotic phase of the cell cycle.
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B.
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D.
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19.  If the liver cells of an animal have 24 chromosomes, how many chromosomes do its sperm cells have?
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20.  Independent assortment of chromosomes is a result of
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21.  At which stage of mitosis are chromosomes photographed in the preparation of a karyotype?
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22.  In which group of eukaryotic organisms does the nuclear envelope remain intact during mitosis?
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23.  Match the following key event of meiosis with one of the stages listed below:  Tetrads of chromosomes are aligned at the center of the cell; independent assortment soon follows.     I.    prophase I       V.    prophase II     II.   metaphase I    VI.    metaphase II     III.   anaphase I     VII.    anaphase II     IV.  telophase I     VIII.    telophase II
24.  Crossing over occurs during which phase of meiosis?
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25.  The lettered circle in the figure above shows a diploid nucleus with four chromosomes. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is symbolized as black and the other haploid set is gray. The chromosomes in the unlettered circle have not yet replicated. Choose the correct chromosomal conditions for the following stage. *At prometaphase of mitosis
26.  Imagine looking through a microscope at a squashed onion root tip. The chromosomes of many of the cells are plainly visible. In some cells, replicated chromosomes are aligned along the center (equator) of the cell. These particular cells are in which stage of mitosis?
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27.  Which of the following is true of the process of meiosis?
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B.
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28.                  A.     telophase                 B.     anaphase                 C.     prometaphase                 D.     metaphase                 E.     prophase Choose the answer from the above that best fits the description: Two centrosomes are arranged at opposite poles of the cell.
29.  Chromosomes first become visible during ________ of mitosis.
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30.  In animals, somatic cells are produced by mitosis and ________ are produced by meiosis.
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31.  Which of the following organisms does not reproduce cells by mitosis and cytokinesis?
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32.  If there are 20 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis?
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33.  The formation of a cell plate is beginning across the middle of a cell and nuclei are re-forming at opposite ends of the cell. What kind of cell is this?
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34.  Density-dependent inhibition is explained by which of the following?
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35.  After telophase I of meiosis, the chromosomal makeup of each daughter cell is
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36.  Proteins that are involved in the regulation of the cell cycle, and that show fluctuations in concentration during the cell cycle, are called
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37.  All of the following occur during mitosis except the
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38.  Which of the following happens at the conclusion of meiosis I?
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39.  How do cells at the completion of meiosis compare with cells that have replicated their DNA and are just about to begin meiosis?
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40.  Select the term below that is most closely related to this phrase: DNA is replicated at this time of the cell cycle.     A.    G0     B.    G1     C.    S     D.    G2     E.    M
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