Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 10, Problem 11TYK
In bacteria:
a. several chromosomes undergo mitosis.
b. binary fission produces four daughter cells.
c. replication begins at the origin (ori), and the DNA strands separate.
d. the plasma membrane plays ab important role in separating the duplicated chromosomes into the two daughter cells.
e. the daughter cells receive different geneti information from the parent cell.
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High concentrations of nuclear CyclinD is required for entry into S phase. Which of these events MOST likely upon entry into S phase?
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In eukaryotic chromosomes, DNA wraps around_____ . a. histone proteins d. centromeres b. sister chromatids e. nucleosomes c. the double helix f. mutations
Chapter 10 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 10.1 - What are the three interrelated systems that...Ch. 10.1 - Prob. 2SBCh. 10.1 - Prob. 3SBCh. 10.1 - Prob. 4SBCh. 10.2 - Compare the chromosome content of daughter cells...Ch. 10.2 - Prob. 2SBCh. 10.2 - Prob. 3SBCh. 10.3 - How does spindle formation differ in animals and...Ch. 10.3 - Prob. 2SBCh. 10.4 - Prob. 1SB
Ch. 10.4 - Prob. 2SBCh. 10.4 - What is an oncogene? How might an oncogene affect...Ch. 10.4 - Prob. 4SBCh. 10.5 - Prob. 1SBCh. 10.5 - Prob. 2SBCh. 10 - During the cell cycle, the DNA mass of a cell:...Ch. 10 - A tumor suppressor protein, p21, inhibits Cdk1....Ch. 10 - A major difference between hereditary information...Ch. 10 - The major microtubule organizing center of the...Ch. 10 - Prob. 5TYKCh. 10 - Which of the following statements about mitosis is...Ch. 10 - Prob. 7TYKCh. 10 - Which of the following statements about cell cycle...Ch. 10 - Which of the following is not a characteristic of...Ch. 10 - Which of the following does not accurately...Ch. 10 - In bacteria: a. several chromosomes undergo...Ch. 10 - Prob. 12TYKCh. 10 - Discuss Concepts A cell has 38 chromosomes. After...Ch. 10 - Prob. 14TYKCh. 10 - Prob. 15TYKCh. 10 - Apply Evolutionary Thinking The genes and proteins...Ch. 10 - Biologists have long been interested in the...Ch. 10 - Prob. 2ITD
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- After DNA replication, a eukaryotic chromosome _________ . a. consists of two sister chromatids b. has a characteristic X shape c. is constricted at the centromere d. all of the abovearrow_forwardNucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by: A. Robert Hooke B. Robert Brown C. Rudolf Virchow D. Theodore Schwannarrow_forwardLook at the picture carefully below and imagine inside a cell nucleus. a) encircle and name the parts where DNA is most accessible and least accessible b) how nucleosome positioning or spacing can interfere with DNA accessiblityarrow_forward
- when a cell to divide, its DNA must be replicated (copied). a.List the most important participating components and their functions in replication b.why is it important that the replication goes right and that relatively few mutations occur during the replication? c.Will the offspring of the individual who received a mutation inherit the mutationarrow_forwardDNA replication begins... A. At the origin of replication B. At the 5' end of the DNA strand C. At the centromeres where sister chromatids are connected D. At the start codonarrow_forwardWhen a cell is to divide, its DNA must be replicated (copied). a) Indicate the main participating components and their functions. b) Why is it important that the replication goes right and that relatively few mutations occur during the replication?arrow_forward
- What is a nucleosome? a. A region in the cell’s nucleus that contains euchromatin b. A region of DNA wound around histone proteins c. A region of a chromosome made up of multiple loops of chromatin d. A 30-nm fiber found in chromatinarrow_forwardBiologists 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 DNA replication, the role of topoisomerase is to Question 11 options: a) "unzip" the double stranded DNA in front of DNA polymerase. b) maintain the single stranded DNA. c) supercoil the DNA after the replication fork has passed. d) relieve supercoil tension in the DNA in front of the replication fork.arrow_forward
- Which statement is false? a) Mitochondria carry DNA in the form of a closed circle. b) Chloroplasts carry DNA in the form of a closed circle. c) A nucleus can possess DNA in the form of a linear chromosome. d) The nucleoid region carries DNA in the form of a closed circle. e) None of the above statements is false.arrow_forwardWhat is the relationship between cells, the nucleus, chromosomes, genes, and DNA? Explain and draw a figure to illustrate the concept.arrow_forwarda) How come cells in a multicellular organism look different and have different functions? b) How could this be linked to the chromatin structure?arrow_forward
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