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 3, Problem 10TYK
RNA differs from DNA because:
a. RNA may contain the pyrimidine uracil, and DNA does not.
b. RNA is always single-stranded when functioning, and DNA isalways double-stranded.
c. the pentose sugar in RNA has one less O atom than thepentose sugar in DNA.
d. RNA is more stable and is broken down by enzymes lesseasily than DNA.
e. RNA is a much larger molecule than DNA.
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The phosphodiester bonds that link adjacent nucleotides in both RNA and DNA:
a. always link A with T and G with C.
b. are susceptible to alkaline hydrolysis.
c. are uncharged at neutral pH.
d. form between the planar rings of adjacent bases.
e. join the 3' hydroxyl of one nucleoside to the 5' hydroxyl of the next.
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.
RNA is different from DNA in which of the following ways?a. RNA is generally single-stranded.b. RNA contains uracil rather than thymine.c. The sugar of RNA is ribose.d. RNA is translated to form proteins.e. All of these are correct.
Chapter 3 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 3.1 - What is the difference between hydrocarbons and...Ch. 3.1 - What is the maximum number of bonds that a carbon...Ch. 3.1 - Do carboxyl groups, amino groups, and phosphate...Ch. 3.1 - What is the difference between a dehydration...Ch. 3.2 - What is the difference between a monosaccharide, a...Ch. 3.3 - What are the three most common lipids in living...Ch. 3.4 - Prob. 1SBCh. 3.4 - What is a peptide bond, and what type of reaction...Ch. 3.4 - Prob. 3SBCh. 3.5 - What is the monomer of a nucleic acid...
Ch. 3.5 - What are the chemical differences between DNA and...Ch. 3 - Which functional group has a double bond and forms...Ch. 3 - Which of the following characteristics is not...Ch. 3 - Cellulose is to carbohydrate as: a. amino acid is...Ch. 3 - Maltose, sucrose, and lactose differ from one...Ch. 3 - Lipids that are liquid at room temperature: a. are...Ch. 3 - Which of the following statements about steroids...Ch. 3 - The term secondary structure refers to a proteins:...Ch. 3 - The first and major effect in denaturation of...Ch. 3 - In living systems: a. proteins rarely combine with...Ch. 3 - RNA differs from DNA because: a. RNA may contain...Ch. 3 - Discuss Concepts Identify the following structures...Ch. 3 - Discuss Concepts Lipoproteins are relatively...Ch. 3 - Prob. 13TYKCh. 3 - Prob. 14TYKCh. 3 - Prob. 15TYKCh. 3 - Prob. 1ITDCh. 3 - Prob. 2ITDCh. 3 - Prob. 3ITD
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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
- The following are all true of RNA, excepta. it is a single-stranded molecule existing in helical form. b. it contains uracil rather than thymine as the complementary base-pairing mate for adenine.c. uracil does not follow the pairing rules;therefore, the inherent DNA code ischanged.d. the sugar in RNA is ribose rather than deoxyribosearrow_forwardWhich of the following correctly describes a structural feature of DNA or RNA? a. RNA may fold into complex three-dimensional structures necessary for its activity b. RNA & DNA are both usually double stranded c. DNA tends to fold into complex three-dimensional structures required for its activity d. DNA contains a pentose sugar with a hydroxyl group in the 2' positionarrow_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
- Which of the following would explain the formation of double stranded loops in RNAS? A. electronic interactions between the negatively charged phosphate groups B. steric interactions between the aromatic rings of the purine bases. C. Change in the conformation of the rings of the sugars. D. Complementary base pairing E. Specific sequences that causes conformational changes in the polynucleotidearrow_forwardWhich of the following is true about the structure of nucleotides? A. Purine nucleotides cannot base pair with pyrimidine nucleotides. B. Pyrimidine bases are larger than purine bases. C. Purine and pyrimidine bases are found in DNA and RNA. D. Thymine base is found in DNA and RNA.arrow_forwardThe type of bonds between the nucleotide bases of the two strands of DNA are a.polar covalent bonds. b.nonpolar covalent bonds. c.hydrogen bonds. d.ionic bonds.arrow_forward
- Is the answer: b,c,d b,d a,carrow_forwardA nucleotide is composed of all of the following excepta. 5-carbon sugar. c. 6-carbon sugar.b. nitrogen base. d. phosphate grouparrow_forwardWhich of the following statements about DNA is true? (Select all that applied) Select one: a. DNA contains thymine but not uracil. b. DNA molecules contain deoxyribose. c. All of these d. In a double-stranded DNA molecule, adenine on one strand will be connected to thymine on the complementary strand by two hydrogen bonds.arrow_forward
- Each of the following statements about protein synthesis is false.Correct each to make a true statement. a. In a gene, each nucleotide specifies one amino acid in a protein sequence. b. A transcription factor must bind to the promoter region of a gene before the enzyme DNA synthetase is able to bind and begin transcription. c. The enzyme RNA polymerase builds a strand of transfer RNA, whose codons are complementary to DNA’s triplets. d. Proteins destined for secretion from the cell enter the nucleus after translation, to be folded and modified. e. During translation, amino acids are delivered by the messenger RNA transcriparrow_forwardMany diseases, cancers and even normal human variations can be caused by mutations and variations in the DNA nucleotide sequence. The most likely immediate result of DNA having a different nucleotide sequence is that Group of answer choices a, no direct result of change in the protein molecule would occur if DNA is mutated b, the protein resulting from the DNA mutation would be denatured and nonfunctional c, the primary structure of amino acid sequence in a protein would be altered. d the peptide bonds in the protein would by hydrolyzed and the protein would fall apartarrow_forwardAn RNA nucleotide differs from a DNA molecule in that RNA hasa. a ribose sugar.b. a uracil base.c. a phosphate molecule.d. Both a and b are correct.arrow_forward
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