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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Textbook Question
Chapter 10, Problem 10TYK
Which of the following does not accurately characterize bacterial DNA?
a. The bacterial chromosome is a closed, circular molecule of DNA.
b. Bacterial DNA is organized into nucleosomes.
c. The primary DNA molecule of most bacteria is curcular.
d. DNA is organized more simply in bacteria than in eukaryotes.
e. Positively charges proteins can combine with bacterial DNA.
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Which of the following regions of a genome would be most likely to be a SINGLE CRE?
A. A section of DNA that is 10 base pairs long
B. A section of DNA that is 50 base pairs long
C. A section of DNA that is 200 base pairs long
D. A section of DNA that is 1500 base pairs long
GENETICS
The modified "dye terminator method for DNA sequencing represented a major improvement over Sanger's original method because ( among other things) it does NOT require
a) a DNA primer
b) DNA polymerase
c) the use of four separate sequencing reactions for each template
d) the use of electrophoresis to separate DNA chains based on size
e) the used chemically modified dNTPs
f) all of the above
In the context of chemical evolution, DNA's structure is interesting because it suggests a possible copying mechanism. What about DNA's structure facilitates copying?
A.
The strands of the double helix are complementary.
B.
DNA always goes from 5' to 3'.
C.
It has the same number of purines and pyrimidines.
D.
The nitrogenous bases are located on the inside of the double helix.
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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- Which of the following describes a Z-DNA helix? a. It is inhibited by methylation of bases b. It is favored by alternating GC sequence c. It has fewer base pairs per turn than the B-DNA d. It is favored in many solutions that are relatively devoid of waterarrow_forwardWhy do you think all organisms use nucleic acids for encoding genetic information? Why not use proteins or carbohydrates? What advantages might DNA have as the source of genetic information?arrow_forwardWhat is the role of Sodium Iodidee in DNA isolation? A. Solubilization of phospholipids B Precipitation of DNA C Destroy hydrogen bonding network in solvent D Precipitation of cel wall and cell membranearrow_forward
- In its organization, chloroplast DNA is most similar to a. bacteria. b. archaea. c. nuclear DNA of plants. d. nuclear DNA of primitive eukaryotesarrow_forwardA researcher sequences the genome of a variety of bacterial and eukaryotic cells. She finds that the bacterial genome is smaller, but that there are more genes for a given number of base pairs in the eukaryotic cells. In other words, there are fewer genes per unit of length of DNA in the eukaryotic cells. What do you predict she will find if she examines the DNA more closely? A. All of the bacterial DNA consists of coding sequences, but this is not true of the eukaryotic DNA. B. There are more repetitive sequences in the eukaryotic DNA than in the bacterial DNA. C. There are densely packed genes in the eukaryotic DNA that were not immediately distinguishable during the first analysis. D. The bacteria have larger quantities of noncoding DNA than the eukaryotic cells.arrow_forwardIf DNA of a particular species was analyzed and it was found that it contains 27 percent A, what would be the percentage of C? a. 27 percent b. 30 percent c. 23 percent d. 54 percentarrow_forward
- Which of the following statements is false? a) the bacterial chromosome is usually circular b) the bacterial chromosome has a single origin of replication c) the bacterial chromosome consists of a single molecule of DNA d) plasmids are small DNA molecules that occur in bacteria but are not essential - for normal function. e) Most bacterial genomes consist of fewer than 1,000 genesarrow_forwardSuppose you had a method of cutting DNA at specific sequences of nucleotides. how many nucleotides long (on average) would such a sequence have to be in order to make just one cut in a bacterial genome of 3 × 106 nucleotide pairs?arrow_forwardWhich of the following would be most likely to cause a mutation? A. the addition of nucleotides to the 3’ end of the growing strand B. the insertion of a mismatched nucleotide into a DNA strand C. the unwinding of the DNA strand D. the synthesis of short stretches of DNAarrow_forward
- Place the steps of sanger sequencing in order.A. A fluorescent laser excites the fragments and records the wavelength consistent with a single nucleotide. B. ddNTPs bind and stop chain extension.C. DNA fragments are separated by size through a capillary tube. D. DNA polymerase copies the target region of template DNA.E. The final nucleotide of each fragment is labeled with a fluorescent tag.arrow_forwardSuppose a region of DNA is 100 bp long. How many unique sequences could it potentially represent? A) 1004 B) 4100 C) 400 D) 4,000 E) 10,000arrow_forwardWhich of the following is not one of the ways that Avery’s transforming principle resembles DNA?a. It migrates like DNA in a centrifuge.b. It is not destroyed by DNA-digesting enzymes.c. It migrates like DNA in an electric field.d. It is not destroyed by protein-digesting enzymes.arrow_forward
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