Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 16, Problem 8RQ
Prokaryotic cells lack a nucleus. Therefore, the genes in prokaryotic cells are:
- all expressed, all of the time
- transcribed and translated almost simultaneously
- transcriptionally controlled because translation begins before transcription ends
- b and c are both true
Expert Solution & Answer
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Which of the following statements is correct?
Many prokaryotic, but not eukaryotic, mRNAs are polycistronic.
Eukaryotic, but not prokaryotic primary transcripts undergo extensive post-transcriptional processing before becoming
mature MRNAS.
O All of the provided statements are correct.
transcription and translation are tightly coupled (i.e., occur at the same time in the same place within the cell) in prokaryotes,
but not in eukaryotes.
Which of the following is true of the timing of RNA processing?
The premise is false; mRNA processing does not occur in eukaryotes
mRNA processing occurs in the cytosol after pre-mRNA is exported from the nucleus
mRNA processing occurs co-transcriptionally
mRNA processing occurs in the nucleus after transcription has terminated
Indicate which of the following items are associated with transcription or translation. This could be in prokaryotes or eukaryotes, or both.
Group of answer choices: Translation OR Transcription
Sigma binds to the promoter
mRNA binds to the small ribosomal subunit
Spliceosomes remove introns and splice together exons
Nucleotides are added from the 5' to 3' end
tRNA anticodon binds to the corresponding mRNA codon
STOP codon results in termination
Chapter 16 Solutions
Biology 2e
Ch. 16 - Figure 16.5 In E. coli, the tip operon is on by...Ch. 16 - Figure 16.7 In females, one of the two X...Ch. 16 - Figure 16.13 An increase in phosphorylation levels...Ch. 16 - Control of gene expression in eukaryotic cells...Ch. 16 - Post-translational control refers to: regulation...Ch. 16 - How does the regulation of gene expression support...Ch. 16 - If glucose is absent, but so is lactose, the lac...Ch. 16 - Prokaryotic cells lack a nucleus. Therefore, the...Ch. 16 - The a/a operon is an inducible operon that...Ch. 16 - What are epigenetic modifications? the addition of...
Ch. 16 - Which of the following are true of epigenetic...Ch. 16 - The binding of _____ is required for transcription...Ch. 16 - What will result from the binding of a...Ch. 16 - A scientist compares the promoter regions of two...Ch. 16 - Which of the following are involved in post...Ch. 16 - Binding of an RNA binding protein will the...Ch. 16 - An unprocessed pre-mRNA has the following...Ch. 16 - IS. Alternative splicing has been estimated to...Ch. 16 - Post-translational modifications of proteins can...Ch. 16 - A scientist mutates elF-2 to eliminate its GTP...Ch. 16 - Cancer causing genes are called transformation...Ch. 16 - Targeted therapies are used in patients with a set...Ch. 16 - Name two differences between prokaryotic and...Ch. 16 - Describe how controlling gene expression will...Ch. 16 - Describe how transcription in prokaryotic cells...Ch. 16 - What is the difference between a repressible and...Ch. 16 - In cancer cells, alteration to epigenetic...Ch. 16 - A scientific study demonstrated that rat mothering...Ch. 16 - Some autoimmune diseases show a positive...Ch. 16 - A mutation within the promoter region can alter...Ch. 16 - What could happen if a cell had too much of an...Ch. 16 - A scientist identifies a potential transcription...Ch. 16 - Describe how RBPs can prevent miRNAs from...Ch. 16 - How can external stimuli alter...Ch. 16 - Protein modification can alter gene expression in...Ch. 16 - Alternative forms of a protein can be beneficial...Ch. 16 - Changes in epigenetic modifications alter the...Ch. 16 - A scientist discovers a virus encoding a Protein X...Ch. 16 - New drugs are being developed that decrease DNA...Ch. 16 - How can understanding the gene expression pattern...
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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
- Unlike in prokaryotic cells, transcription and translation in eukaryotic cells... Group of answer choices are separated: transcription occurs in the cytoplasm, and translation occurs in the nucleus. occur together in the cytosol. occur together in the nucleus. are separated, except for proteins that bind to the DNA and ribosomes, which are translated in the nucleus. are separated: transcription occurs in the nucleus, and translation occurs in the cytoplasm.arrow_forwardAs a gene s information is used to create a protein, which of the following is controlled by other proteins? transcription translation protein folding and activation all of the abovearrow_forwardMore than one answer can be correctarrow_forward
- Which of the following statements regarding complementary molecules in transcription is false? Group of answer choices The sense strand is complementary to the template strand The transcribed RNA is complementary to the noncoding strand The coding strand is complementary to the antisense strand The transcribed RNA is complementary to the coding strandarrow_forwardEukaryotic messenger RNA can undergo post synthetic processing after transcription and before translation. One of the processing steps is splicing, where portions of the RNA are removed and the remaining RNA are joined together. Classify the statements regarding mRNA splicing as true or false. True statements False statements In splicing, intron sequences are removed from the mRNA in the form of lariats (loops) and are degraded. Splicing occurs while the mRNA is still in the nucleus. Splicing of mRNA does not involve any proteins. One MRNA can sometimes code for more than one protein by splicing at alternative sites. Splicing occurs while the mRNA is attached to the nucleosome.arrow_forwardUnlike transcription in most prokaryotes, transcription in eukaryotes Group of answer choices makes use of regulatory regions called promoters is affected by degeneracy of the genetic code. produces an RNA molecule that has to undergo modification to remove introns. proceeds in the 5’-3’ direction, while it proceeds in the opposite direction in prokaryote all of these are truearrow_forward
- When choosing a "first line" drug to treat an infection, the most important characteristic would be? the specific mechanism of action bactericidal broad spectrum low toxicity (fewest side effects) In what cell type can both transcription and translation occur simultaneously? both prokaryotic and eukaryotic cells neither prokaryotic and eukaryotic cells prokaryotic cells eukaryotic cellsarrow_forwardIn a eukaryotic cell transcription only occurs in the nucleus and translation in the cytoplasm. True Falsearrow_forwardWhich of the following characterize RNA polymerase Il transcriptional termination in eukaryotes? Endonuclease cleavage of the RNA transcript and 5' to 3' exonuclease activity a protein known as Ratl None of the provided answers, transcriptional termination occurs in prokaryotes. Recognition of the transcriptional stop codon by a release factor. Hairpin structure formation on the newly synthesized RNA molecule which disrupts the DNA-RNA hybrid at a poly-U RNA sequence Binding of the Rho protein.arrow_forward
- Transcription in prokaryotes and eukaryotes is similar in that.. the MRNA produced can undergo alternative spicing both are regulated by binding of proteins to DNA near the gene being transcribed both are regulated by promoters that can be located far away from the gene both occur within the cell nucleus transcriptional machinery controls the structure of chromatinarrow_forwardShown below is an eukaryotic gene. Assuming normal wild type RNA processing in a.cell, which of the following mature MRNAS could result in normal levels of functional synthesized proteins? Select all that apply Direction of transcription Promoter Template strand 5' Exon 4 Intron 3 Exon 3 Intron 2 Exon 2 Intron 1 Exon 1 3' 5' Coding strand Transcription start Transcription start 5' CAP-Exon1-Exon3-Exon4-AA..AAAA 5' CAP-Exon1-Exon2-Exon3-Exon4-AA...AAAA 5' CAP-Exon1-Exon2-Exon3-Exon4 Exon1-Exon2-Exon3-Exon4-.....AAAAarrow_forwardWhich of the following sites would you predict to be present in the gene encoding a MRNA molecule and what would be their order? LIST OF SITES #1 Promoter #2 Ribosome Binding Site #3 Translation Initiation Site #4 Translation Termination Site #5 Transcription Initiation Site #6 Transcription Termination Site O 3, 1, 2, 6, 4, 5 O 1, 3, 2, 5, 6, 4 О 1,5, 2, 3,4, 6 О 1,3, 2,4 О 1,3,4arrow_forward
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