The functions of centrioles include ...... a.serving as the site for ribosomal RNA synthesis b.producing ATP c.providing a whiplike beating motion to move substances along cell surfaces d.organizing the mitotic spindle in cell division

Focal adhesions ________. a. have been implicated in cell locomotion b. contain integrins that develop transient interactions with the extracellular matrix c. collect information about the chemical properties of the extracellular environment d. transmit information to the cell interior that may lead to changes in cell adhesion, proliferation or survival e. All of these are correct.

Biopsies from aggressive cancers often have cells that contain several nuclei per cell when viewed through a microscope. Which scenario could explain how such a multinucleated cell might have come to be? (a) The cell underwent repeated mitosis with simultaneous cytokinesis. (b) The cell had multiple S phases before it entered mitosis. (c) The cell underwent repeated mitosis, but cytokinesis did not occur. (d) The cell underwent repeated cytokinesis but no mitosis. (e) The cell actually went through meiosis and not mitosis.

What is the function of these cells and what are their names? DTAGS Function? A. Name of cell? B. Name of cell? B [Choose] [Choose] [Choose] < <

1. The cell cycle is fundamental to the reproduction of eukaryotic cells. (a) Describe the phases of the cell cycle. (b) Explain the role of TWO of the following in mitosis or cytokinesis. . Kinetochores Microtubules Centrosome (c) Describe how the cell cycle is regulated and discuss ONE consequence of abnormal regulation. Cell cycle C.

Identify the phase in mitosis in which the chromatin condenses into chromosomes. Select one: a. Telophase b. Anaphase c. Prophase d. Metaphase

7. Which of the following arguments best supports the importance of microtubules in the movement of an organism? A. Microtubules are involved in the separation of chromosomes during mitosis B. Microtubules are tracks used for the transport of vesicles from the Endoplasmic to the Golgi apparatus C. Microtubules can slide relative to one another inside cilia and under the action of dynein. D. Microtubules are made of tubulin-dimers E. Microtubules are larger than intermediate filaments and actin filaments

Scientists in the lab have isolated a substance that prevents cells from synthesizing spindle fibres. What is this substance and how would this substance affect cell division?