BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 15, Problem 5U
An anticodon would be found on which of the following types of RNA?
a. snRNA (small nuclear RNA)
b. mRNA (messenger RNA)
c. tRNA (transfer RNA)
d. rRNA (ribosomal RNA)
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Researchers screening the blood of an advanced
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Assume that a mutation occurs in the gene that encodes each of the
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b. Some ribosomal RNA is not synthesized
c. Ribosomal RNA is not processed
d. pre-mRNA is not processed
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Which of the following amino acids is carried by the tRNA that initiates translation in eukaryotes?
a.Tryptophan
b.Leucine
c.Methionine
d.Alanine
Chapter 15 Solutions
BIOLOGY
Ch. 15.1 - Prob. 1LOCh. 15.1 - Prob. 2LOCh. 15.1 - List the roles played by RNA in gene expression.Ch. 15.2 - Prob. 1LOCh. 15.2 - Describe the characteristics of the genetic code.Ch. 15.2 - Prob. 3LOCh. 15.3 - Prob. 1LOCh. 15.3 - Differentiate among initiation, elongation, and...Ch. 15.3 - Prob. 3LOCh. 15.4 - Prob. 1LO
Ch. 15.4 - Prob. 2LOCh. 15.4 - Explain the differences between bacterial and...Ch. 15.5 - Prob. 1LOCh. 15.5 - Prob. 2LOCh. 15.5 - Prob. 3LOCh. 15.6 - Explain why the tRNA charging reaction is critical...Ch. 15.6 - Prob. 2LOCh. 15.7 - Prob. 1LOCh. 15.7 - Prob. 2LOCh. 15.7 - Compare translation on the RER and in the...Ch. 15.9 - Prob. 1LOCh. 15.9 - Explain the nature of triplet repeat expansion.Ch. 15.9 - Prob. 3LOCh. 15 - Prob. 1DACh. 15 - Prob. 2DACh. 15 - Prob. 1IQCh. 15 - Prob. 2IQCh. 15 - Prob. 3IQCh. 15 - The experiments with nutritional mutants in...Ch. 15 - What is the central dogma of molecular biology? a....Ch. 15 - In the genetic code, one codon a. consists of...Ch. 15 - Eukaryotic transcription differs from prokaryotic...Ch. 15 - An anticodon would be found on which of the...Ch. 15 - RNA polymerase binds to a ________ to initiate...Ch. 15 - During translation, the codon in mRNA is actually...Ch. 15 - You have mutants that all affect the same...Ch. 15 - The splicing process a. occurs in prokaryotes. b....Ch. 15 - The enzyme that forms peptide bonds is called...Ch. 15 - In comparing gene expression in prokaryotes and...Ch. 15 - The codon CCA could be mutated to produce a. a...Ch. 15 - An inversion will a. necessarily cause a mutant...Ch. 15 - What is the relationship between mutations and...Ch. 15 - Prob. 1SCh. 15 - Frameshift mutations often result in truncated...Ch. 15 - Describe how each of the following mutations will...Ch. 15 - There are a number of features that are unique 10...
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- Portions of eukaryotic mRNA sequence that are removed during RNA processing are . a. exons b. caps c. poly-A tails d. intronsarrow_forwardWhich of the following amino acids is carried by the tRNA that initiates translation in eukaryotes? A. Alanine B. Methionine C. Tryptophan D. Leucinearrow_forwardGiven is the 30 nucleotides in the human gene for hemoglobin (the oxygen-carrying protein in the red blood cells): 5’ TAC-CAC-GTG-GAC-TGA-GGA-CTC-CTC-TTC-AGA 3’ a. What is the complementary strand? b.Deduce the mRNA in this coding region. c.What is the amino acid sequence based on this mRNA? d. A very important mutation in human hemoglobin occurs in this DNA sequence, where the T at nucleotide 20 is replace with an A. The mutant hemoglobin is called sickle cell hemoglobin and is associated with severe anemia. What is the amino acid replacement that results in sickle-cell hemoglobin?arrow_forward
- Given is the 30 nucleotides in the human gene for hemoglobin (the oxygen-carrying protein in the red blood cells): 5’ TAC-CAC-GTG-GAC-TGA-GGA-CTC-CTC-TTC-AGA 3’a. What is the complementary strand?b. Deduce the mRNA in this coding region.c. What is the amino acid sequence based on this mRNA?d. A very important mutation in human hemoglobin occurs in this DNA sequence, where the T at nucleotide 20 is replace with an A. The mutant hemoglobin is called sickle cell hemoglobin and is associated with severe anemia. What is the amino acid replacement that results in sickle-cell hemoglobin?arrow_forwardBelow is an electron micrograph illustrating the process of simultaneous transcription and translation in a prokaryotic cell. Use this illustration to answer the question. A. Which of the following statements is correct? 1. The direction indicated by A, is the correct direction of RNA polymerase movement. 2. If C and D are both pointing to the first ribosome in the chain, then ribosome C is carrying a longer polypeptide chain. 3. If E is pointing to mRNA, then it is pointing to the 5'end of the mRNA. 4. If B is pointing to the DNA, then it is pointing to the 5' end of the DNA. O A. 1, 2 and 3 O B. 1 and 3 O C. 2 and4 O D. 4 only O E. All of 1, 2, 3 and 4 are correctarrow_forwardWhich of the following BEST describes the characteristics and function of siRNA? A. a short strand of RNA that can complement and inactivate a sequence of mRNA B. a short strand of RNA that can act as a transcription factor to initiate transcription C. a strand of DNA that can bind to and inactivate an mRNA sequence D. a tRNA that is not able to attach to a ribosome and therefore inhibits the process of translationarrow_forward
- A prokaryotic gene was transcribed then translated. During the process, antibiotics X was added, and the products of translation were only f-met. What steps in translation was inhibited by antibiotic X? A. Transpeptidation or the formation of peptide bonds B. Binding of amino-acyl t-RNA to the 30S subunit of the ribosome C. Formation of the functional ribosome D. Translocation or the movement of empty t-RNA to the E site. E. Hydrolysis of GTParrow_forwardWhich of the following is not a type of RNA?a. nRNA (nuclear RNA)b. mRNA (messengerc. rRNA (ribosomal RNA)d. tRNA (transfer RNA)arrow_forwardWhich of the following arms of t-RNA is required for recognition of the t-RNA by its proper aminoacyl t-RNA synthetase? a. Anti-codon arm b. T(psi)C arm c. D arm d. Acceptor armarrow_forward
- Consider this sequence below: GAG TAC ACG AGT GGA Which of the following options is an example of a non-synonymous point mutation? (remember to translate to mRNA!) A. GAG TAC AAT CGA GTG GA B. GAG TAC ACG GGT GGA C. GAG TAC A–G AGT GGA D. GAG TAC ACG AGA GGAarrow_forwardIf the following RNA polymerases were missing from a eukaryotic cell, what types of genes would not be transcribed? A. RNA polymerase I C. RNA polymerase III B. RNA polymerase IIarrow_forwardWhich of the following statements below is incorrect? * A. the genetic code is overlapping B. the genetic code is universal C. degenerate codon specify the same amino acids D. the genetic code is triplet Which protein can break covalent bond? * A. Helicase B. Primase C. SSB D. DNA gyrase What is the complementary hnRNA base sequence produced from the DNA base sequence 5' C-T-A-T-A-C 3'? * A. 3' C-A-T-A-T-C 5' B. 3' G-A-T-A-T-G 5' C. 3' G-A-U-A- U-G 5' D. 3' C-U-A-U-A-G 5' Which of the following statements concerning the " cloverleaf" shape of tRNA molecules is correct? * A. four hairpin loops are present B. three hairpin loops and one open end are present C. two hairpin loops and two open ends are present…arrow_forward
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