Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 8, Problem 19TYK
Bacteria are able to divide on a faster schedule than eukaryotic cells. Some bacteria can divide every 20 minutes, while the minimum time required by eukaryotic cells in a rapidly developing embryo is about once per hour, and most cells divide much less often than that. State at least two testable hypotheses explaining why bacteria can divide at a faster rate than eukaryotic cells.
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Why do eukaryotic cells need to go through the elaborate procedure of mitosis rather than simply dividing during interphase? Select as many answers as apply.
1.Daughter cells must be genetically identical to the mother cell, for homeostasis and ordered tissue growth.
2.Bivalent chromosomes must condense and be separated in an orderly fashion, to allow equal distribution of copies into daughter cells
3.Physically dividing the nucleus during interphase would likely lead to gross chromosome breakage and highly unequal assortment of genetic information into daughter cells.
4.Dividing the nucleus during interphase would have the same outcome as mitosis
5.Daughter cells must have half the number of chromosomes after mitosis than the mother cells
6.The homologous pairs of chromosomes need to be separated, to ensure copies go to the daughter cells.
Please help
Place the images of the cell division in the right order and label them
a)  What is the final product of this type of cell division? Indicate the number of dauahter cells, the TYPE OF CELLS (somatic cells? sex cells? other?), where in the body this process takes place, whether they are genetically diverse pridentical, haploid or diploid, the chromosome number in human cells, whether they contain sinale- or double-stranded chromosomes, and what the "fate" of these cells is i.e. what will they go on to do, if given the chance)?
3) Examine the graph showing the relative percentage normal and cancer cells spend in various stages of the cell cycle. Based on the information in the graphs, infer how cancer cells differ from typical, noncancerous cells. Select ALL that apply.
A) Cancer cells do not replicate their DNA.
B) Cancer cells replicate their DNA too quickly.
C) Cancer cells do not go through interphase during their cell cycle.
D) Cancer cells spend more time dividing compared to typical cells.
E) Cancer cells do not always grow to the same size as typical cells.
more than 1 answer. not graded
Chapter 8 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a grasshopper contains 24...Ch. 8 - Which of the following is not a function of...Ch. 8 - It is difficult to observe individual chromosomes...Ch. 8 - A fruit fly somatic cell contains 8 chromosomes....Ch. 8 - If a fragment of a chromosome breaks off and then...Ch. 8 - Which of the following phases of mitosis is...Ch. 8 - A biochemist measured the amount of DNA in cells...Ch. 8 - A micrograph of a dividing cell from a mouse...Ch. 8 - Cytochalasin B is a chemical that disrupts...
Ch. 8 - Why are individuals with an extra chromosome 21,...Ch. 8 - In the light micrograph below of dividing cells...Ch. 8 - An organism called a plasmodial slime mold is one...Ch. 8 - Prob. 14TYKCh. 8 - Discuss the factors that control the division of...Ch. 8 - Compare cytokinesis in plant and animal cells. In...Ch. 8 - Sketch a cell with three pairs of chromosomes...Ch. 8 - Suppose you read in the newspaper that a genetic...Ch. 8 - Bacteria are able to divide on a faster schedule...Ch. 8 - Prob. 20TYKCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - Prob. 22TYK
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- Most nerve cells in the adult human central nervous system, as well as heart muscle cells, do not divide. In contrast, cells lining the inside of the small intestine divide frequently. Discuss this difference in terms of why damage to the nervous system and heart muscle cells (for example, that caused by a stroke or heart attack) is so dangerous. What do you think might happen to tissues such as the intestinal lining if a disorder blocked mitotic cell division in all cells of the body?arrow_forwardAssume that you are growing mammalian cells in culture. You are able to synchronize the culture, meaning all of the cells undergo each stage of the cell cycle at the same time. The graph shows thelamount of DNA in the nuclei of cells during cycle1 and cycle 2 of cell growth II III IV First cycle Second cvele Amount of DNA in nucleusarrow_forwardAssume that you are growing mammalian cells in culture. You are able to synchronize the culture, meaning all of the cells undergo each stage of the cell cycle at the same time. The graph shows the amount of DNA in the nuclei of cells during cycle 1 and cycle 2 of cell growth II III IV First cycle Second cycle At which stage(s) would you NOT find condensed chromosomes? Select all that apply Amount of DNA in nucleusarrow_forward
- A cell stops proliferating when treated with a chemical analog to fucoxanthin. When these cells are analyzed and compared to untreated cells according to the amount of DNA they contain using flow cytometry, the graphs in the figure below are obtained. Which of the following answers would NOT cause this result?arrow_forwardHow long does it take for a cell to take one complete cycle? The answer varies on the type of cell and the species. For instance, a liver cell completes its cell cycle for over 22 hours (Becker and Lane 1965) while other somatic cell lasts to about 18 hours. Can you cite other types of cells that undergo cell cycle and the time it takes to complete the cycle? List five below.arrow_forwardThe cell above is in Metaphase 1. Provide evidence that this cell is in this stage using relevant terminology. How would the cell above look different if it were in Metaphase 2?arrow_forward
- Looking at the the time intervals in the figure given, compare the time spent in mitosis with the time spent in gap1 in human liver cells. A. less time is spent in G1 than in M B. a little more time is spent in G1 than in M C. The cell spends 10 hours less in G1 than it does in M D. The cell spends 10 hours more in G1 than it does in Marrow_forwarda) Fluorescent probes such as DAPI are often used tostudy cells that are in the different phases of cell cycle.DAPI is a fluorescent stain that binds to DNA. The graphshows the variation in fluorescence intensity of humanskin cells that were sorted by FACs into 2 populationsbased on the amount of fluorescence.Which phase(s) of the cell cycle are population A in?Population B? Why did you pick those phases?arrow_forwardou add radioactive thymine to a culture of eukaryotic cells that are all currently in S phase. Predict the results from cells that divide twice after this addition. Group of answer choices Radioactive thymine would pair with nonradioactive guanine. All four bases of the DNA would be radioactive. DNA in all daughter cells would be radioactive. None of the daughter cells would be radioactive. One of the daughter cells, but not the other three, would have radioactive DNA.arrow_forward
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