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.

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.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 12QP: Why is cell furrowing important in cell division? If cytokinesis did not occur, what would be the...

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There are certain cells that are multinucleated (having more than one nucleus). Which of the following is a possible explanation for this occurrence? A) The cell underwent repeated cytokinesis but no mitosis. B) The cell underwent repeated mitosis with simultaneous cytokinesis. C) The cell underwent repeated mitosis, but cytokinesis did not occur. D) The cell had multiple S phases before it entered mitosis.
Some cancer drugs stop cell division by stabilizing microtubules so they cannot come apart. Which step of the mitosis is disrupted? A) Telophase B) cytokinesis C) Anaphase D) Metaphase
Which is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.
The end result of mitosis and cytokinesis is A) two cells, each with half the number of chromosomes as the mother cell B) three cells, one of which is twice the size of the other two C) two cells identical in size and genetic material D) two cells identical in genetic material, but one is smaller than the other
12) Match the cell-cell junction on the left with the appropriate function on the right. Note that more than one letter may apply for a particular function and that each letter may be used more than once or not at all. A) Gap junctions provides a very strong attachment point between cells B) Desmosomes allow easy movement of large amounts of substances between adjacent cells C) Plasmodesmata seals the plasma membranes of adjacent cells together, preventing the movement of molecules between them D) Tight junctions
Which of the following is not true about phagocytosis?(a) It is a form of exocytosis.(b) It is energy dependent.(c) It only occurs in eukaryotes.(d) A larger cell engulfs a smaller cell that will eventually bepresent in an internal vacuole.(e) It requires fusion of internal lysosomes to engulfed vac-uole for contents to be digested
Through a microscope, you can see a cell platebeginning to develop across the middle of a celland nuclei forming on either side of the cell plate.This cell is most likely(A) an animal cell in the process of cytokinesis.(B) a plant cell in the process of cytokinesis.(C) a bacterial cell dividing.(D) a plant cell in metaphase.
When some cancer cells produce growth factors that stimulate their own division leading to continuous self- stimulation for cell division it is referred to as a) TNF tumor necrosis factor b) AGS autocrine growth stimulation
The cell membrane a) has no function that is known. b) is responsible for starting mitosis. c) controls what substances enter the cell. d) has a thick cuticle around the outside.
In the diagram, the speed bumps (look like short walls) represent __________. A) The only times at which genes may be actively expressed B) Points in time when the cell divides C) One-hour timepoints D) Checkpoints in the cell cycle .
(a) the cell cycle is divided into different phases (referred to as M, G0, G1, S and G2); Can you account for what happens during the different parts of the cycle and out of it is checked? ( b) What is the difference between apoptosis and necrosis? ( c) What are caspases and what is their function in the cell?
the period between mitoses, divided into G1, S, and G2 is a) M phase b) interphase c) C phase d) A phase