1. Homologous chromosomes line up at the equator (or the middle) of the cell. Metaphase I 2. Spindle fibers pull homologous chromosomes to opposite poles of the cell. Anaphase 3. Four haploid daughter cells form. Telophase II/Cytokinesis 4. Sister chromatids in each of the haploid cells line up at the equator of the cell. Metaphase I 5. Two haploid daughter cells form. Prophase I| 6. Spindle fibers forms in each of the haploid cells and chromosomes are still composed of sister chromatids. Prophase I 7. Sister chromatids are pulled to opposite poles of the cell. Anaphase II 8. Chromosomes condense and crossing over occurs. Prophase I 9. Cell undergoes a round of DNA replication. Ubterogase

1. Homologous chromosomes line up at the equator (or the middle) of the cell. Metaphase I 2. Spindle fibers pull homologous chromosomes to opposite poles of the cell. Anaphase 3. Four haploid daughter cells form. Telophase II/Cytokinesis 4. Sister chromatids in each of the haploid cells line up at the equator of the cell. Metaphase I 5. Two haploid daughter cells form. Prophase I| 6. Spindle fibers forms in each of the haploid cells and chromosomes are still composed of sister chromatids. Prophase I 7. Sister chromatids are pulled to opposite poles of the cell. Anaphase II 8. Chromosomes condense and crossing over occurs. Prophase I 9. Cell undergoes a round of DNA replication. Ubterogase

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter10: Cell Reproduction

Section: Chapter Questions

Problem 1VCQ: Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line...

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Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.
S. Chromosomes are duplicated during what stage of the cell cycle? G1 phase S phase prophase prometaphase
Neurons are arrested in ________ of the cell cycle. a. G1 b. anaphase c. prophase d. S phase
Match each stage with the events listed. ___ metaphase a. sister chromatids move apart ___ prophase b. chromosomes condense ___ telophase c. new nuclei form ___ interphase d. chromosomes aligned midway between spindle poles ___ anaphase e. G1, S, G2 ___ cytokinesis f. cytoplasmic division
The mitotic spindles arise from which cell structure? centromere centroscme kinetochore cleavage furrow
Metaphase in mitosis is similar to what stage in meiosis? a. prophase I b. prophase II c. metaphase I d. metaphase II e. crossing-over
Figure 28.11 depicts the eukaryotic cell cycle. Many cell types â€œexitâ€� the cell cycle and donâ€™t divide for prolonged periods, a state termedG0; some, for example neurons, never divide again. a. In what stage of the cell cycle do you suppose a cell might be when it exits the cell cycle and enters G0? b. The cell cycle is controlled by checkpoints, cyclins, and CDKs. Describe how biochemical events involving cyclins and CDKs might control passage of a dividing cell through the cell cycle.
Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic spindle. Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides.
A cell in G1 of interphase has 8 chromatins. How many chromosomes and how many DNA molecules will be found per cell as this cell progresses through the following stages: a) metaphase b) anaphase c) after cytokinesis in mitosis d) metaphase I e) anaphase I f) metaphase II g) anaphase II h) after cytokinesis of meiosis II
Matching Terms: A. Prophase B. Anaphase C. Telophase D. Metaphase E. Interphase _____1. The sister chromatids are moving apart. _____2. The nucleolus begins to fade from view. _____3. A new nuclear membrane is forming. _____4. The cell membrane begins to pinch in. _____5. The chromosomes de-condense. _____6. The chromosomes are located at the equator. _____7. The nuclear membrane begins to fade from view. _____8. The chromosomes move towards the poles of the cell. _____9. Sister chromatids line up along the equator. _____10. The division (cleavage) furrow appears _____11. The spindle is formed. _____12. Chromosomes are not visible. _____13. The cell plate begins to be built. _____14. Chromosomes replicated. _____15. The reverse of prophase.
YOU DON'T NEED TO EXPLAIN THESE QUESTIONS JUST PROVIDE ANSWER DNA separates during ____ of mitosis. a)Prophase b)Telophase c)Metaphase d)Interphase e)Anaphase 2. What separates during mitosis? a)Single DNA strands b)Cytoplasm c)Sister chromatids d)Telomeres e)Homologous chromosomes 3. Oncogenes are associated with cancer because they Oncogenes are associated with cancer because they (select one answer) Cause cells to initiate a death pathway Fail to put a “brake” on the cell cycle Push cells through the cell cycle Divert cells into G0 phase Slow down the cell cycle
Cells normally contain fully or partially replicated chromosomes in all of the following stages of the cell cycle except: G1 G2 prophase metaphase S