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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.  The centromere is a region in which
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2.  You have in your possession a microscope slide with meiotic cells on it and a light microscope. What would you look for if you wanted to identify metaphase I cells on the slide?
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B.
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3.  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
4.  When comparing prophase I of meiosis with prophase of mitosis, which of the following occurs only in meiosis?
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5.  G1 is represented by which number(s)?
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6.  If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will
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7.  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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8.  Cells that are in a nondividing state are in which phase?
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9.  In which group of eukaryotic organisms does the nuclear envelope remain intact during mitosis?
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10.  Which of the life cycles is typical for animals?
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11.  During which phases of mitosis are chromosomes composed of two chromatids?
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12.                  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.
13.  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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14.  If the liver cells of an animal have 24 chromosomes, how many chromosomes do its sperm cells have?
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15.  Select the term below that is most closely related to this phrase: a general term for enzymes that activate or inactivate other proteins by phosphorylating them     A.    PDGF     B.    MPF     C.    protein kinase     D.    cyclin     E.    Cdk
16.                  A.     telophase                 B.     anaphase                 C.     prometaphase                 D.     metaphase                 E.     prophase   Choose the answer from above that best fits this description: Centromeres uncouple, sister chromatids are separated, and the two new chromosomes move to opposite poles of the cell.
17.  If a cell has 8 chromosomes at metaphase of mitosis, how many chromosomes will it have during anaphase?
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18.  Which of the following are primarily responsible for cytokinesis in plant cells?
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19.  A particular cyclin called cyclin E forms a complex with a cyclin-dependent kinase called Cdk 2.  This complex is important for the progression of the cell from G1 into the S phase of the cell cycle.  Which of the following statements is correct?
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20.  Which of the life cycles is typical for most fungi and some protists?
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21.  What causes the decrease in the amount of cyclin at a specific point in the cell cycle?
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22.  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. one daughter nucleus at telophase of mitosis
23.  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 of DNA might be from a nerve cell arrested in G0 of the cell cycle?
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24.  Which of the following occurs in meiosis but not in mitosis?
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25.  MPF reaches its threshold concentration at the end of this stage.
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26.  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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27.  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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28.  Select the term below that is most closely related to this phrase: The "restriction point" occurs here.     A.    G0     B.    G1     C.    S     D.    G2     E.    M
29.  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
30.  Which of the following is an example of alternation of generations?
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31.  All of the following occur during mitosis except the
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32.  How does the sexual life cycle increase the genetic variation in a species?
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33.  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
34.  Which of the following is the term for a human cell that contains 22 pairs of autosomes and two X chromosomes?
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35.  Which number represents DNA synthesis?
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36.  Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants
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37.  Which of the following is (are) true concerning cyclin-dependent kinase (Cdk)?
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38.  Which of the following is true of a species that has a chromosome number of 2n = 16?
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39.  When pairs of homologous chromosomes separate during anaphase I,
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40.  The correct sequence of steps in the M phase of the cell cycle is
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