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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Double-stranded regions of RNA:
a. are less stable than double-stranded regions of DNA.
b. can be observed in the laboratory, but probably have no biological relevance.
c. can form between two self-complementary regions of the same single strand of RNA.
d. do not occur.
e. have the two strands arranged in parallel (unlike those of DNA, which are antiparallel).
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.
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 deoxyribose
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
- Which 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_forwardEach 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_forwardA nucleotide contains which of the following?a. 5-carbon sugar b. nitrogen base c. phosphate d. b and c only e. all of thesearrow_forward
- An 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_forwardWhich of the following statements is most-correct? Select one: a. Adenine is a purine found in all nucleic acids b. Thymine is a pyrimidine found in all nucleic acids c. Cytosine is a pyrimidine found only in RNA d. Guanine is a purine found only in DNA e. Uracil is a pyrimidine found in both DNA and RNAarrow_forwardRNA molecules differ from DNA molecules in that they * a. are single stranded rather double stranded b. contain five different bases rather than four c. contain a greater number of nucleotide units d. no correct response Which of the following is definitely an incorrect codon-amino acid pairing? * UUU-UUC and Phe-Phe ACU-AAU and Thr-Asn GCC-GCC and Ala-Gly ACU-GUA and Val-Pro Which of the following statements concerning codons is incorrect? * a. they are found within mRNA molecules b. they specify base sequence in terms of four-nucleotide units c. there are 64 of them d. no correct responsearrow_forward
- Which of the following most accurately describes the anticodon? A. Contains a sequence complementary to the codon. B. Reintroduces thymine back into the sequence and removes uracil. C. Contains the sequence in the reverse orientation (3-5 vs 5-3). D. Contains a sequence identical to the codon.arrow_forwardNucleic acids encode information in a. the number of carbon atoms in their sugar subunits. b. the number of phosphate groups attached to each sugar subunit. c. the sequence of nitrogenous bases attached to the sugar-phosphate backbone. d. the sequence of sugars and phosphates that make up the backbone of the molecule.arrow_forwardMark the following properties as belonging to either DNA or RNA. a. Contains the nucleotides A, G, C, and U ________ b. Found only in the nucleus of the cell ________ c. Can move in and out of the cell’s nucleus ________ d. Contains two strands of nucleotides linked by hydrogen bonds ________ e. Contains the code for every protein in the body ________ f. Contains the sugar ribose________arrow_forward
- The role of transfer RNA (tRNA) is to match a codon (3 bases) in mRNA sequence to: A. An amino acid B. A peptide bond C. An R group D. A start codonarrow_forwardThe best definition of an endonuclease is that it hydrolyzes A. nucleotide from only the 3' -end of an oligonucleotide . B. nucleotide from either terminal of an oligonucleotide. C. phosphodiester bond located in the interior of a polynucleotide . D. bond only in a specific sequence of nucleotides. E. bond that is distal co the base chat occupies the 5' position of the bondarrow_forwardA key difference between the nucleotides found in DNA andthose in RNA is thata. DNA has phosphate, but RNA does not.b. DNA has deoxyribose, but RNA has ribose.c. DNA has thymine, but RNA has uracil.d. Both b and c are correct.arrow_forward
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