12_Study Guide - Biology 7e(Campbell Chapter 12 The Cell...

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Biology, 7e (Campbell) Chapter 12: The Cell Cycle Chapter Questions 1) The centromere is a region in which A) chromatids are attached to one another. B) metaphase chromosomes become aligned. C) chromosomes are grouped during telophase. D) the nucleus is located prior to mitosis. E) new spindle microtubules form. 2) What is a chromatid? 3) What is the name for the special region on a duplicated chromosome that holds the sister chromatids together? 4) Starting with a fertilized egg (zygote), a series of five cell divisions would produce an early embryo with how many cells? 1
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5) If there are 20 chromatids in a cell, how many centromeres are there? A) 10 B) 20 C) 30 D) 40 E) 80 6) Which of the following statements is not true?
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Figure 12.1 7) at prometaphase of mitosis 8) one daughter nucleus at telophase of mitosis The questions below refer to the following terms. Each term may be used once, more than once, or not at all. 9) Two centrosomes are arranged at opposite poles of the cell. 10) Centrioles begin to move apart in animal cells. 11) This is the longest of the mitotic stages. 12) Centromeres uncouple, sister chromatids are separated, and the two new chromosomes move to opposite poles of the cell.
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