Mitosis And Meiosis - ChAPters 12-13 - AP Biology

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mitosis and meiosis - chAPters 12-13 - AP biology

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1. 
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?
A.
B.
C.
D.
E.
2.  In which group of eukaryotic organisms does the nuclear envelope remain intact during mitosis?
A.
B.
C.
D.
E.
3.  What is the name of enzymes that control the activities of other proteins by phosphorylating them?
A.
B.
C.
D.
E.
4.  Which of the following organisms does not reproduce cells by mitosis and cytokinesis?
A.
B.
C.
D.
E.
5.  All of the following occur during prophase of mitosis in animal cells except
A.
B.
C.
D.
E.
6.  Movement of the chromosomes during anaphase would be most affected by a drug that
A.
B.
C.
D.
E.
7.  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?
A.
B.
C.
D.
E.
8.  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.
9. 
In the figure above, mitosis is represented by which number?
A.
B.
C.
D.
E.
10.  Which of the following statements about genes is incorrect?
A.
B.
C.
D.
E.
11.  Eukaryotic sexual life cycles show tremendous variation. Of the following elements, which do all sexual life cycles have in common?     I.    alternation of generations     II.    meiosis     III.    fertilization     IV.    gametes     V.    spores
A.
B.
C.
D.
E.
12. 
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 a sperm cell?
A.
B.
C.
D.
E.
13.  How does the sexual life cycle increase the genetic variation in a species?
A.
B.
C.
D.
E.
14.  Chromosomes first become visible during ________ of mitosis.
A.
B.
C.
D.
E.
15.  Which of the following occurs in meiosis but not in mitosis?
A.
B.
C.
D.
E.
16.  Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants
A.
B.
C.
D.
E.
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: Which sample of DNA might be from a nerve cell arrested in G0 of the cell cycle?
A.
B.
C.
D.
E.
18.  What is a chromatid?
A.
B.
C.
D.
E.
19.  For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes?
A.
B.
C.
D.
E.
20.  Select the term below that is most closely related to this phrase: a protein synthesized at specific times during the cell cycle that associates with a kinase to form a catalytically active complex     A.    PDGF     B.    MPF     C.    protein kinase     D.    cyclin     E.    Cdk
21.  At which stage of mitosis are chromosomes photographed in the preparation of a karyotype?
A.
B.
C.
D.
E.
22.  Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle was the nucleus with 6 picograms of DNA?
A.
B.
C.
D.
E.
23.  After telophase I of meiosis, the chromosomal makeup of each daughter cell is
A.
B.
C.
D.
E.
24.  The somatic cells derived from a single-celled zygote divide by which process?
A.
B.
C.
D.
E.
25.  Select the term below that is most closely related to this phrase: the shortest part of the cell cycle     A.    G0     B.    G1     C.    S     D.    G2     E.    M
26.  In animals, somatic cells are produced by mitosis and ________ are produced by meiosis.
A.
B.
C.
D.
E.
27.  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
A.
B.
C.
D.
E.
28. 
Which of the life cycles is typical for plants and some algae?
A.
B.
C.
D.
E.
29.  Match the following statement with one of the statements below: Homologous chromosomes synapse and crossing over occurs.     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.
30.  In animals, meiosis results in gametes, and fertilization results in
A.
B.
C.
D.
E.
31.  Crossing over occurs during which phase of meiosis?
A.
B.
C.
D.
E.
32.  What is a genome?
A.
B.
C.
D.
E.
33. 
Which diagram represents prophase I of meiosis?
34. 
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
35.  How do cells at the completion of meiosis compare with cells that have replicated their DNA and are just about to begin meiosis?
A.
B.
C.
D.
E.
36.  Which of these statements is false?
A.
B.
C.
D.
E.
37.                  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.
38.  Referring to a plant sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes?
A.
B.
C.
D.
E.
39.  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?
A.
B.
C.
D.
E.
40.  Select the term below that is most closely related to this phrase: Fibroblasts have receptors for this substance on their plasma membranes.     A.    PDGF     B.    MPF     C.    protein kinase     D.    cyclin     E.    Cdk
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