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 statements is a lie?
Select one:
a. In humans, the genetic code is stored in 46 double-stranded DNA molecules.
b. DNA packaging of prokaryotes into compact sizes is distinct to eukaryotic DNA packaging.
c. Plasmids cause bacterial mutation and diversification thus they are essential components for cellular reproduction.
Which of the following statements about nucleic acids is not correct?
Select one:
A.
In DNA the distance between the strands of the double helix is relatively constant.
B.
The growing DNA polymer is synthesized in the 5' to 3' direction.
C.
The enzymes that catalyze DNA synthesis are known as DNA polymerases.
D.
RNA strands are synthesized in the 3' to 5' direction.
E.
Unlike DNA, RNA is easily cleaved because the 2'-OH group of the ribose is a nucleophile that catalyzes hydrolysis of the strand.
Which of the following is evidence for the natural existence of Z-DNA?:
A. Z-DNA is a right handed helix like B-DNA
B. Specific Z-DNA binding proteins have been identified
C. Z-DNA is prevalent in sex chromosomes
D. Z-DNA forms under high salt conditions
E. Z-DNA is tightly coiled in nucleosomes
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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- Refer to Figure 2 and compare this with the DNA model in Figure 1. a. In what ways are they similar? b. In what ways are they different? c. What is the biological significance of such differences? Why is the DNA referred to as the genetic material?arrow_forwardWhich of the following statements accurately describes DNA sequences and this subtypes? A. permissive DNA; centromeres and heterochromatin B. moderately repetitive DNA; SINEs, LINEs, and VNTRs C. dominant DNA; euchromatin and heterochromatin D. multiple gene family DNA; hemoglobin and 5.0S RNA E. composite DNA; telomeres and heterochromatinarrow_forwardWhich of the following is not true with respect to DNA? a. A nucleic acid that contains the genetic instructions used in the development and functioning of all modern living organisms. b. The helix geometry of DNA is of B-Form. DNA is completely protected by the body, i.e., the body destroys enzymes that cleave DNA. DNA can be damaged by exposure to Ultra-violet rays. c. The pairing of bases: A-T (Adenine-Thymine), G-C (Guanine-Cytosine) d. Consists of a deoxyribose sugar, a phosphate backbone, four bases: adenine, guanine, cytosine and uracil. e. None of the abovearrow_forward
- Which of the following experimental results was NOT evidence that DNA is the genetic molecule rather than proteins? a. When a virus was radioactively labelled, and the virus was allowed to infect a bacteria cell, radioactive virus DNA was found inside the bacteria cell while radioactive virus proteins were found outside the cell. b. Dead pathogenic bacteria cells combined with living nonpathogenic bacteria cells caused the creation of living pathogenic cells and thus the death of the host animal. c. Proteins are a class of macromolecules with the diversity and specificity needed for hereditary material. d. Nucleotide bases occur regularly, such that the number of adenines = number of thymines, and the number of guanines = number of cytosines.arrow_forwardThe nucleotides from a bacterial cell were found to have the following abundances: 39% uracil; 41% adenine, 9% cytosine; 8% guanine. What type of molecule is the genome of the bacteria likely made of? a. Double stranded DNA b. Single stranded DNA c. Messenger RNA d. Double stranded RNAarrow_forwardA key difference between B DNA and Z DNA is thata. B DNA is right-handed, whereas Z DNA is left-handed.b. B DNA obeys the AT/GC rule, whereas Z DNA does not.c. Z DNA allows ribose in its structure, whereas B DNA uses deoxyribose.d. Z DNA allows uracil in its structure, whereas B DNA uses thymine.arrow_forward
- The molecule DNA is important to biological systems because a. it can be replicated. b. it encodes the information for making a new individual. c. it forms a complex, double-helical structure. d. nucleotides form genes.arrow_forward"Chargaff's rules" about the composition of bases in DNA dictates that A. the sum of purine residues must equal the sum of pyrimidine residues. B. the sum of A-T base pairs must equal the sum of G-C base pairs. C. the base composition of DNA is the same in all species. D. DNA specimens isolated from different tissues of the same species vary in base composition.arrow_forwardA. Instead of having a linear chromosome, bacteria have a circular chromosome. B. Organisms living in fresh water environment need to use to remove water out of the cell so they don't burst. C. is covered in a silica test which is the main component of making glass. D. Name the structure labeled as "d".arrow_forward
- We have looked at the structure of DNA in cells. There are some differences. Based on what we have learned, which of the following is TRUE? a. Mitochondrial chromosomal DNA is similar in structure to bacterial chromosomes. b. Prokaryotic chromosomes contain kinetochores whereas eukaryotic chromosomes have centromeres. c. All the chromosomes found in eukaryotes are linear while prokaryotic chromosomes are circular. d. Bacterial chromosomes have multiple origins of replication, thus allowing for short generation times, whereas eukaryotic chromosomes are replicated from a single origin. e. All the answers presented are TRUE. f. Telomeres are found on all chromosomes, both prokaryotic and eukaryotic, however only eukaryotic telomers shorten over time.arrow_forwardWhich of the following is NOT true of the structure of DNA? a. Nitrogenous bases A and C bond together, and bases T and G bond together. b. It contains all of the genetic information for an individual. c. The backbone is made up of alternating sugars and phosphates. d. The molecule has the shape of a coiled ladder.arrow_forwardThe phosphodiester bond in DNA links: a. The 2’ carbon of the ribose to the 3’ carbon of the subsequent ribose. b. The 3’ carbon of the ribose to the 5’ carbon of the subsequent ribose. c. The 3’ carbon of the ribose to the 2’ carbon of the subsequent ribose. d. The 2’ carbon of the ribose to the 5’ carbon of the subsequent ribose. e. The 1’ carbon of the ribose to the 5’ carbon of the subsequent ribose.arrow_forward
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