Question 8. Cells in the G0 state __________. a) do not divide. b) cannot re-enter the cell cycle. c) have entered this arrest state from either G1 or G2. d) have duplicated their DNA. Question 9. A cell with nuclear lamins that cannot be phosphorylated in M phase will be unable to __________. a) reassemble its nuclear envelope at telophase. b) disassemble its nuclear lamina at prometaphase. c) begin to assemble a mitotic spindle. d) condense its chromosomes at prophase. Question 10. Which of the following statements about the cytoskeleton is true? a) All eukaryotic cells have actin, microtubules, and intermediate filaments in their cytoplasm. b) The cytoskeleton provides a rigid and unchangeable structure important for the shape of the cell. c) The three cytoskeletal filaments perform distinct tasks in the cell and act completely independently of one another. d) Actin filaments and microtubules have an inherent polarity, with a plus end that grows more quickly than the minus end.
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They have entered this arrest state from G1, not G2, and have not duplicated their DNA. Show more…
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1) The centromere is a region in which A) new spindle microtubules form at either end. B) chromosomes are grouped during telophase. C) the nucleus is located prior to mitosis. D) chromatids remain attached to one another until anaphase. E) metaphase chromosomes become aligned at the metaphase plate. 2) If there are 20 chromatids in a cell, how many centromeres are there? A) 80 B) 10 C) 30 D) 40 E) 20 3) Which is the longest of the mitotic stages? A) anaphase B) telophase C) prometaphase D) metaphase E) prophase 4) A cell containing 92 chromatids at metaphase of mitosis would, at its completion, produce two nuclei each containing how many chromosomes? A) 92 B) 16 C) 23 D) 46 E) 12 5) Cytokinesis usually, but not always, follows mitosis. If a cell completed mitosis but not cytokinesis, the result would be a cell with A) two nuclei but with half the amount of DNA. B) a single large nucleus. C) two nuclei. D) two abnormally small nuclei. E) high concentrations of actin and myosin. 6) 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? A) an animal cell undergoing cytokinesis B) an animal cell in telophase C) an animal cell in metaphase D) a plant cell undergoing cytokinesis E) a plant cell in metaphase 7) Chromosomes first become visible during which phase of mitosis? A) metaphase B) prometaphase C) telophase D) prophase E) anaphase
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3. The stage where the nuclear membrane disappears and chromosomes begin to appear is A) INTERPHASE B) PROPHASE C) TELOPHASE D) ANAPHASE E) METAPHASE 4. During interphase, when the DNA is in long thin strands and is not yet visible, DNA is CHROMATIN B) NUCLEOLUS C) CHLOROPLAST D) CHROMOSOMES 5. The cells that result from mitosis are called A) SEX CELLS B) TWIN CELLS C) PARENT CELLS D) DAUGHTER CELLS 6. Using the first letter of each stage, the correct order of the stages of mitosis are A) MATP B) PTMA C) PMAT D) AMPT E) ALL ARE INCORRECT 7. The stage of mitosis where the nuclear membrane reappears is A) INTERPHASE B) PROPHASE C) TELOPHASE D) ANAPHASE E) METAPHASE 8. The stage of mitosis where chromosomes line up along the center is A) INTERPHASE B) PROPHASE C) TELOPHASE D) ANAPHASE E) METAPHASE 9. The stage of mitosis where chromatids separate is A) INTERPHASE B) PROPHASE C) TELOPHASE D) ANAPHASE E) METAPHASE 10. The phase of the cell cycle where the cell grows is A) INTERPHASE B) PROPHASE C) TELOPHASE D) ANAPHASE E) METAPHASE
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Question 1: Part A: Chromosomal DNA is duplicated during the ________ phase of the cell cycle. a) G1 b) G2 c) Mitotic d) S Part B: Sister chromatids separate from one another during mitosis in.. a) Anaphase b) Metaphase c) Prophase d) Telophase Part C: Cells move automatically through the G1, S, G2, and M phases of the cell cycle. However, movement through the cycle is also controlled at various ________ by internal and external factors that can either push the cell along the cycle or stop the cell from moving ahead in the cycle. a) Checkpoints b) Promoter Regions c) Regular Regions d) S Locations Part D Cancer is a group of many different diseases that all are caused by... a) Cells unable to exit the G0 stage of the cell cycle b) Inability to process energy c) Loss of protein function d) Uncontrolled cell division
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