Anaphase: The kinetochore microtubules that make up the spindle begin to shorten, separating the sister chromatids from one another and drawing each to opposite poles of the cell. Polar microtubules assist in this process as they begin to lengthen and push the poles farther from each other. Why is this separation of chromatids necessary?

Anaphase: The kinetochore microtubules that make up the spindle begin to shorten, separating the sister chromatids from one another and drawing each to opposite poles of the cell. Polar microtubules assist in this process as they begin to lengthen and push the poles farther from each other. Why is this separation of chromatids necessary?

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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Please match the stage of M-Phase with the correct process occurring during that time. sister chromatid separation early mitotic spindle nuclear envelope breakdown chromosomes align in the middle of the cell chromosome condensation nuclear envelope reforms ✓ [Choose ] prophase metaphase prometaphase telophase anaphase [Choose ] [Choose ] [Choose ] [Choose ]
In a dividing cell, the duplicated sets of chromosomes move along microtubules to opposite ends of the cell. How would you use an inhibitor to show that microtubules are essential for chromosome separation? What control treatment(s) would you use? What kind of cell junctions would you expect to find, and why, in a small animal where a chemical signal passes rapidly through cells to go from the head to the tail?
TELOPHASE This stage shows the end of Telophase AFTER cytokinesis has occurred • Nuclear membrane reformed in each cell • Nucleolus reformed in each cell • Centrioles present in cells at one end Two new daughter cells with same # of chromosomes: 46 single stranded chromosomes in each nucleus Daughter Cell Diploid cell 2n = Daughter cell Diploid cell 2n =
Mitosis: Events Name the phase of mitosis in which each event occurs. Each answer choice is used once and only once. Chromosomes line up along the cell's [Choose] equatorial plate. Chromatids, now real chromosomes, [ Choose ] move to opposite sides of the cell. Chromosomes shorten and thicken. [ Choose ] Nuclear membrane forms. [Choose] Spindle fibers attach to kinetochores [Choose] on chromosomes and begin to pull.
Draw a simple model of a cell shortly before centrosome duplication and draw a representationof the centrosome cycle through two rounds of the cell cycle (until you have 4 cells). In eachdivision note the plane where the contractile ring will bisect the spindle.