Practice Exam 2 - 1. How do the daughter cells at the end...

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1. How do the daughter cells at the end of meiosis II and cytokinesis compare with their parent cell when it was in the G2 of the cell cycle? a. The daughter cells have half the number of chromosomes and one quarter the amount of DNA. b. The daughter cells have half the amount of cytoplasm and half the amount of DNA. c. The daughter cells have the half the number of chromosomes and the same amount of DNA. d. The daughter cells have one quarter number of chromosomes and half the amount of DNA. e. The daughter cells have the same number of chromosomes and twice the amount of DNA. 2. Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants: a. the spindles contain microfibrils in addition to microtubules, whereas animal spindles do not contain microfibrils. b. sister chromatids are identical, but they differ from one another in animals. c. ther are no centrioles, while in animal cells there are centrioles present. d. chromosomes become attached to the spindle at prophase, whereas in animals chromosomes do not become attached until anaphase. e. spindle poles contain centrioles, whereas spindle poles in animals do not. Use the following to answer the following three questions . The figure shows a diploid cell with four chromosomes. There are two types of chromosomes, one long and the other short. One haploid set is symbolized by unbroken lines, while the other haploid set is represented by dotted lines. At this time, the chromosomes have not yet replicated. Now choose the correct chromosomal condition for the following stages. These drawings only represent the chromosomal condition, NOT necessarily position at a particular phase. 3. at metaphase of mitosis. 4. a possible daughter cell of mitosis. 5. a possible daughter cell of meiosis I. 6. If a dividing cell has 12 chromatids at metaphase, what is the haploid number for that species? a. 3 b. 6 c. 12 d. 24 e. 48 Use this key for the following two questions. I. Prophase I II. Metaphase I III. Anaphase I IV. Telophase I V. Interkinesis VI. Prophase II VII. Metaphase II VIII. Anaphase II IX. Telophase II
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7. Single chromosomes, each consisting of two sister chromatids, are now aligned at the center of the cell. a. I b. II c. III d. VII e. VIII 8. Homologous pairs of chromosomes begin to move apart and are pulled toward opposite poles. a. II b. III c. V. d. VII e. VIII 9. Black fur in mice (B) is dominant to brown fur (b). Short tails (T) is dominant to long tails (t). What proportion of the progeny of the cross BbTt x Bbtt will have black fur and long tails? a. 9/16 b. 8/16 c. 6/16 d. 3/16 e. 1/16
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This test prep was uploaded on 04/09/2008 for the course BSC 2010 taught by Professor Bowes during the Fall '08 term at University of Florida.

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Practice Exam 2 - 1. How do the daughter cells at the end...

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