Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 12, Problem 9SQ
Summary Introduction
Introduction: The meiotic division is a division that occurs in a cell that typically lessens the number of chromosomes present in its parent cell by half. Meiotic divisions are more complex than the mitosis. Here the cell divides twice. The first division of diploid cell gives two diploid daughter cells (Meiosis I) and the next division reduces the chromosome number by half, which later gives rise to four haploid cells. Every round of division contains four stages that include: the initial is prophase, metaphase, anaphase, and the final telophase.
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The cell pictured to the right is in whichstage of nuclear division?a. metaphase II c. anaphase IIb. anaphase I d. interphase
At what stage in mitosis do the sister chromatids line up along the midline of the cell?
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Chapter 12 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 12 - One evolutionary advantage of sexual over asexual...Ch. 12 - Meiosis is a necessary part of sexual reproduction...Ch. 12 - Meiosis _________. a. occurs in all eukaryotes b....Ch. 12 - Sexual reproduction in animals requires ______. a....Ch. 12 - Meiosis ______ the parental chromosome number. a....Ch. 12 - Dogs have a diploid chromosome number or 78. How...Ch. 12 - The cell in the diagram to the right is in...Ch. 12 - Prob. 8SQCh. 12 - Prob. 1DAACh. 12 - Prob. 2DAA
Ch. 12 - Prob. 3DAACh. 12 - Prob. 9SQCh. 12 - Crossing over mixes up ______. a. chromosomes b....Ch. 12 - Crossing over happens during which phase of...Ch. 12 - Which of the following is one of the very...Ch. 12 - Match each term with the best description. __...Ch. 12 - ________ contributes to variation in traits among...Ch. 12 - The diploid chromosome number for the body cells...Ch. 12 - In your own words, explain why sexual reproduction...Ch. 12 - Different populations of the tiny freshwater...Ch. 12 - Make a simple sketch of meiosis in a cell with a...
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- The individual chromosomes become visible with a light microscope during which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardSeparation of the sister chromatids is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophasearrow_forwardChromosomes are duplicated during what portion of the cell cycle? a. G 1 phase b. S phase c. prophase d. prometaphasearrow_forward
- 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 divisionarrow_forwardWhich eukaryotic cell-cycle event is missing in binary fission? a. cell growth b. DNA duplication c. mitosis d. cytokinesisarrow_forwardIn the image, you can see one cell that is in the process of mitosis. (Note that chromosomes are stained dark blue.) In which stage is this cell currently? A. Telophase B. Metaphase C. Interphase D. Prophase E. Cytokinesis F. Anaphasearrow_forward
- Attachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardIdentify the type of cells undergoing cell division in phases 1 and 8 in the diagram above. Select one: a. Phase 1 Phase 8 Daughter cell Germ cell b. Phase 1 Phase 8 Somatic cell Daughter cell c. Phase 1 Phase 8 Germ cell Gamete d. Phase 1 Phase 8 Gamete Somatic cellarrow_forwardFigure C indicates what stage of cell division? В. А. C. D. Е. a. Prometaphase b. Cytokinesis C c. Metaphasearrow_forward
- During this stage, the microtubules are shortened causing separation of sister chromatids. a. Prophase O b. Metaphase c. Anaphase d. Telophasearrow_forwardDuring which phase of the cell cycle is the genetic material duplicated? a. Metaphase b. Anaphase c. Telophase d. Interphase e. Prophasearrow_forwardAt what point in the cell cycle does the amount of DNA double in a cell? A. G1 phase B. S phase C. Cytokinesis D. Metaphase 25.arrow_forward
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