The image below shows a somatic cell from an organism for which 2n = 8 (top cell from the image below). Which of the cells beneath it (A, B, C or D) could be a gamete from this organism? Explain why you chose the cell you did discussing the changes in chromosome number and DNA content of a cell throughout the cell cycle. You should also explain if any of the other images could represent a cell from this organism in stages of meiosis or mitosis or other stages of the cell cycle. XX XX D A XXXX B XX

The image below shows a somatic cell from an organism for which 2n = 8 (top cell from the image below). Which of the cells beneath it (A, B, C or D) could be a gamete from this organism? Explain why you chose the cell you did discussing the changes in chromosome number and DNA content of a cell throughout the cell cycle. You should also explain if any of the other images could represent a cell from this organism in stages of meiosis or mitosis or other stages of the cell cycle. XX XX D A XXXX B XX

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter10: Cell Division And Mitosis

Section: Chapter Questions

Problem 1ITD: Biologists have long been interested in the effects of radiation on cells. In one experiment,...

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Read the discussion of the cell cycle, mitosis, and cytokinesis, pages 00-4to7.In the table below, describe briefly the major events of each part of the cell cycle. (You might want to turn the table sideways so you can write the long way in each box.) Interphase M phase (mitotic cell division) G1 G2 Mitosis Cytokinesis S Prophase | Metaphase Anaphase Telophase
What would happen after some cell divisions if the cell cycle consisted only of S-phase and M-phase. Explain why.
If a typical somatic cell has 12 chromosomes, how many chromatids and DNA molecules are expected in each cell of that organism?
Which stage of the cell cycle is the longest? Why are onion root tips a good choice for viewing cells in different stages of the cell cycle? Are there any mammalian cells that would be a good source for dividing cells? What types of cells would most like NOT have cells undergoing division?
(a) What is the centrosome? (b) Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made up of and pulls sister chromatids apart, whereas the contractile ring is made up of required for the separation of daughter cells at the end of the mitotic phase of the cell cycle. Question 8 Diagrammatically show metaphase and telophase of mitosis using a cell that is 2n=2 which has one metacentric chromosome and one telocentric chromosome.
1) What phase of mitosis is this? Answer: 2) What is the indicated structure 1? select one. a. chromosome b. chromosome with two sister chromatids c. centrioles/centrosome d. spindle fibres e. metaphase plate 3)If the diploid (2n) number of this cell is 8 how many chromosomes are present? 4) If the diploid (2n) number of this cell is 8 how many sister chromatids are present? 5) If the diploid (2n) number of this cell is 8 how many homologous pairs are present?
4. Figure below shows drawings of a cell at various stages in the mitotic cell cycle. A B E (a) List the letters shown in figure above in the order in which these stages occur during a mitotic cell cycle. [2] (b) Explain what is happening in stage D in figure above. [2]
In order to investigate the cell cycle in HEK293 cells in culture, I ran a flow cytometry experiment. I labeled their nuclei with DAPI to analyze DNA content. In these flow cytometry plots below, label the two main phases of the cell cycle that you can see. Briefly, explain your answer.
The following diagram shows a simulated microscopic view of a tissue sample taken from a patient where the cells have been squashed onto a slide and stained to visualize the cell's DNA. In the diagram, click or tap on the center of all cells that appear to be involved in any of the four stages of mitosis. Make sure to mark as close to the center of the cell as possible. In the diagram from Question 5, count the total number of cells visible and write the total number of cells in the space below: In the diagram from Question 5, count the number of cells that you had marked as currently undergoing any of the four phases of mitosis. How many cells in total are currently undergoing mitosis? Write this number in the space below: The mitotic index is a calculated value that represents the percentage of cells in a sample that are actively dividing. It involves counting the total number of cells present including those actively dividing or those in interphase, the total number of cells that…
A diploid cell (2n3D10) contains different types of chromosomesbased on the position of their centromeres Two chromosomes are found to be metacentric, while two chromosomes are acrocentric. Four are observedto have their centromeres submedially located while the remaining chromosomes have terminal centromeres. Illustrate the cell being described. Assuming the cell underwent cell division, drawthe appearance of the cell during the specified stages below a. Metaphase b. Anaphase c. Metaphase l d. Anaphasel e. Anaphase I| f. Telophase |
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.
In the cell cycle it is necessary for interphase to happen before mitosis and cytokinesis creates 2 identical cells. Why is interphase neccessary? What is 1 major reason that mitosis wouldn't work without interphase happening first? INTERPHASE G, (DNA synthesis) G2 MITOTIC PHASE (M) Copy g (level 1) étv .. MacBook Air DII DD 80 888 F9 F10 F7 FB F5 F6 F2 F3 F4 & # $ 3 4 7 9 E R T Y U P F J K C V B