1. Which of the following sequence of cell-cycle phases is characteristic of eukaryotes? A) G to...
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1. Which of the following sequence of cell-cycle phases is characteristic of eukaryotes? A) G to S to MB) Gr to S to G₂ to M to C C) S to M to C D) G₁ to G₂ to S to C E) G₁ to G₂ to Go to S to C 2. The genetic material is duplicated during A) the mitotic phase. B) G₁ C) the S phase. D) G₂ E) mitosis. 3. In a diploid cell with 5 chromosome pairs (2n = 10), how many sister chromatids will be found in a nucleus at prophase of mitosis? A) 5 B) 10 C) 20 D) 40 4. What is the name of the microtubule-organizing the cell cycle? A) centriole center found in animal cells as an identifiable structure present during all phases of B) centrosome C) centromere D) kinetochore 5. The first stage of mitosis, when the chromosomes become visibly shorter and thicker is A) anaphase B) interphase C) metaphase D) prophase 6. During which phase of mitosis do the chromatids become chromosomes? A) telophase B) anaphase C) prophase D) metaphase 7. The framework of microtubules that appears in cell division which eventually moves the chromatids apart is called the A) aster microtubules B) cell plate C) centriole D) kinetochore microtubules E) centromere 8. Chromosomes or sister chromatids are aligned along the cell's equator during A) interphase. B) anaphase. C) prophase. D) metaphase. E) prometaphase 9. Through a microscope, you can see a cleavage furrow beginning to develop across the middle of the cell and nuclei re-forming at opposite poles of the cell. This cell is most likely A) an animal cell in the process of cytokinesis. B) a plant cell in the process of cytokinesis. C) an animal cell in the Sphase of the cell cycle. D) a bacterial cell dividing. E) a plant cell in metaphase. 10. A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell in question is most likely in A) anaphase. B) G2. C)G1 D) prophase. E) metaphase. 11. Which of the following molecules is 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) cyclin D) Cdk 12. One difference between cancer cells and normal cells is that cancer cells A) are always in the M phase of the cell cycle. B) are arrested at the S phase of the cell cycle. C) cannot function properly because they are affected by density-dependent inhibition. D) are unable to synthesize DNA. 13. In the cells of some organisms, mitosis occurs without cytokinesis. This will result in A) cells that are unusually small. B) cell cycles lacking an S phase. D) cells lacking nuclei. E) cells with more than one nucleus. 14. A cell that passes the restriction point in G₁ will most likely A) undergo chromosome duplication D) show a drop in MPF concentration E) telophase E) continue to divide even when they are tightly packed together. B) have just completed cytokinesis E) move into the Go phase 15. Which of the following cell functions are maintained by cell division? A) growth, reproduction B) death C) metabolism 16. The longest part of the cell cycle is A) prophase B) G₁ D) movement C) destruction of chromosomes. C) continue to divide only if it is a cancer cell E) organization C) G₂ D) mitosis E) interphase 1. Which of the following sequence of cell-cycle phases is characteristic of eukaryotes? A) G to S to MB) Gr to S to G₂ to M to C C) S to M to C D) G₁ to G₂ to S to C E) G₁ to G₂ to Go to S to C 2. The genetic material is duplicated during A) the mitotic phase. B) G₁ C) the S phase. D) G₂ E) mitosis. 3. In a diploid cell with 5 chromosome pairs (2n = 10), how many sister chromatids will be found in a nucleus at prophase of mitosis? A) 5 B) 10 C) 20 D) 40 4. What is the name of the microtubule-organizing the cell cycle? A) centriole center found in animal cells as an identifiable structure present during all phases of B) centrosome C) centromere D) kinetochore 5. The first stage of mitosis, when the chromosomes become visibly shorter and thicker is A) anaphase B) interphase C) metaphase D) prophase 6. During which phase of mitosis do the chromatids become chromosomes? A) telophase B) anaphase C) prophase D) metaphase 7. The framework of microtubules that appears in cell division which eventually moves the chromatids apart is called the A) aster microtubules B) cell plate C) centriole D) kinetochore microtubules E) centromere 8. Chromosomes or sister chromatids are aligned along the cell's equator during A) interphase. B) anaphase. C) prophase. D) metaphase. E) prometaphase 9. Through a microscope, you can see a cleavage furrow beginning to develop across the middle of the cell and nuclei re-forming at opposite poles of the cell. This cell is most likely A) an animal cell in the process of cytokinesis. B) a plant cell in the process of cytokinesis. C) an animal cell in the Sphase of the cell cycle. D) a bacterial cell dividing. E) a plant cell in metaphase. 10. A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell in question is most likely in A) anaphase. B) G2. C)G1 D) prophase. E) metaphase. 11. Which of the following molecules is 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) cyclin D) Cdk 12. One difference between cancer cells and normal cells is that cancer cells A) are always in the M phase of the cell cycle. B) are arrested at the S phase of the cell cycle. C) cannot function properly because they are affected by density-dependent inhibition. D) are unable to synthesize DNA. 13. In the cells of some organisms, mitosis occurs without cytokinesis. This will result in A) cells that are unusually small. B) cell cycles lacking an S phase. D) cells lacking nuclei. E) cells with more than one nucleus. 14. A cell that passes the restriction point in G₁ will most likely A) undergo chromosome duplication D) show a drop in MPF concentration E) telophase E) continue to divide even when they are tightly packed together. B) have just completed cytokinesis E) move into the Go phase 15. Which of the following cell functions are maintained by cell division? A) growth, reproduction B) death C) metabolism 16. The longest part of the cell cycle is A) prophase B) G₁ D) movement C) destruction of chromosomes. C) continue to divide only if it is a cancer cell E) organization C) G₂ D) mitosis E) interphase
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1 The correct sequence of cell cycle found in animals which possess two or more cells eukaryotes is given below in order G 1 to S to G 2 to M to C The ... View the full answer
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