Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134606125
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
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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Direction: Use the table below to answer the questions aboutmitosis.Growth Rate of Rapidly Dividing Human Liver CellTime (hours) Number of cells0 110 220 430 840 1650 32
1. If no cells die, how many cells will there be in one week?2. If the original cell is diploid and divides mitotically, howmany copies of each chromosome will there be in 60 hours?
Chapter 8 Solutions
Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th 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 - What you think of as a banana is a Cavendish, one...Ch. 8 - SCIENTIFIC THINKING The study described in Module...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Biologists have long been interested in the effects of radiation on cells. In one experiment, researchers examined the effect of radium on mitosis of chick embryo cells growing in culture. A population of experimental cells was examined under the microscope for the number of cells in telophase (as a measure of mitosis occurring) before, during, and after exposure to radium. The results are shown in the Figure. What is the effect of radium exposure on mitosis? Source: R. G. Canti and M. Donaldson. 1926. The effect of radium on mitosis in vitro. Proceedings of the Royal Society of London, Series B, Containing Papers of a Biological Character 100:413419.arrow_forwardIn a type of skin cancer known as melanoma, skin cells divide uncontrollably. This out-of-control division can be deadly, but a lackof cell division could be harmful as well. Describe why and whenskin cells do need to replicate.arrow_forwardWhich of the following statements about cell division in prokaryotes and eukaryotes is correct? a. In prokaryotes, all cells divide if conditions are favourable; in eukaryotes, only a few cells divide, and they do so according to a developmental program b. After cell division, the daughter cells are genetically identical in prokaryotes but genetically different in eukaryotes c. In prokaryotes, only a few cells divide to ensure survival of the colony without depleting too many resources from the environment d. The process of segregation is more complicated in prokaryotes than in eukaryotes e. Reproductive signals for initiation of cell division are intracellular for prokaryotes and extracellular for eukaryotesarrow_forward
- In the tracking chromosomal DNA movement through mitosis experiment, how many chromosomes did each of your daughter cells contain? Why is it important for each daughter cell to contain information identical to the parent cell? How often do human skin cells divide? Why might that be? Compare this rate to how frequently human neurons divide. What do you notice?arrow_forwardMost 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_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_forward
- you 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. PLEASE ONLY PICK ONE ANSWER: 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_forwardWhich of these are cellular activities that sustain a single-celled organism through its lifetime? Select all that apply. A. Increases in cell size and volumeB. Processes by which individuals produce offspringC. The transmission of DNA to offspringD. Development into a multi-celled adultarrow_forwardWhich of the following statements is true? a. Linear chromosome structures observed in a karyotype are actually pairs of sister chromatids. b. Prokaryotic and eukaryotic cells divide through binary fission. c. Because chromosomes of prokaryotes are smaller than eukaryotic chromosomes, prokaryotic nuclei are also smaller. d. The genetic information found in a eukaryotic chromosome makes up the cell's entire genome.arrow_forward
- Suppose you have a way of measuring the amount of DNA in a single cell during the cell cycle. You first measure the amount during the G1 phase. At what points during the remainder of the cycle would you predict changes in the amount of DNA per cell?arrow_forwardWhen studying living cells in a laboratory, researchers sometimesuse drugs as a way to make cells remain at a particular stage of thecell cycle. For example, aphidicolin is an antibiotic that inhibitsDNA synthesis in eukaryotic cells and causes them to remain inthe G1 phase because they cannot replicate their DNA. In whatphase of the cell cycle—G1, S, G2, prophase, metaphase, anaphase,or telophase—would you expect somatic cells to stay if they weretreated with each of the following types of drug?A. A drug that inhibits microtubule formationB. A drug that allows microtubules to form but prevents them fromshorteningC. A drug that inhibits cytokinesisD. A drug that prevents chromosomal condensationarrow_forwardWhat is a main difference between onion root tip (plant cell) mitosis and whitefish blastula (animal cell) mitosis? A. The DNA is animal cells is inside of a nucleus but there is no nucleus in plant cells. B. A cleavage furrow is not formed in plant cells due to the rigid cell wall. C. Plant cells do not have DNA and animal cells do. D. Plant cells have undergo prophase where they condense their chromosomes but animal cells skip this step.arrow_forward
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