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11. One difference between cancer cells and normal cells is that cancer cells A) are unable to synthesize DNA. B) are arrested at the S phase of the cell cycle. C) continue to divide regardless if they have the appropriate signals. D) cannot function properly because they can only divide when there is space

11. One difference between cancer cells and normal cells is that cancer cells A) are unable to synthesize DNA. B) are arrested at the S phase of the cell cycle. C) continue to divide regardless if they have the appropriate signals. D) cannot function properly because they can only divide when there is space

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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9. The unlettered circle at the top of the figure shows a diploid nucleus with four chromosomes that have not yet replicated. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is black, and the other is gray. The circles labeled A to E show various combinations of these chromosomes. Centromere D E A) Which drawing represents prophase of mitosis? B) Which drawing represents one daughter nucleus at the end of telophase of mitosis? 10. Why do neurons and some other specialized cells divide infrequently? A) They no longer have active nuclei. B) They have entered into G0. C) They only have one set of chromosomes. 11. One difference between cancer cells and normal cells is that cancer cells A) are unable to synthesize DNA. B) are arrested at the S phase of the cell cycle. C) continue to divide regardless if they have the appropriate signals. D) cannot function properly because they can only divide when there is space. 12. The spindle checkpoint ensures that all chromosomes are attached to the mitotic spindle. If this does not happen, cells would most likely be arrested in A) telophase B) anaphase C) G2 D) metaphase
Transcribed Image Text:9. The unlettered circle at the top of the figure shows a diploid nucleus with four chromosomes that have not yet replicated. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is black, and the other is gray. The circles labeled A to E show various combinations of these chromosomes. Centromere D E A) Which drawing represents prophase of mitosis? B) Which drawing represents one daughter nucleus at the end of telophase of mitosis? 10. Why do neurons and some other specialized cells divide infrequently? A) They no longer have active nuclei. B) They have entered into G0. C) They only have one set of chromosomes. 11. One difference between cancer cells and normal cells is that cancer cells A) are unable to synthesize DNA. B) are arrested at the S phase of the cell cycle. C) continue to divide regardless if they have the appropriate signals. D) cannot function properly because they can only divide when there is space. 12. The spindle checkpoint ensures that all chromosomes are attached to the mitotic spindle. If this does not happen, cells would most likely be arrested in A) telophase B) anaphase C) G2 D) metaphase
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