Which of the following are steps of transcription? Select all that apply. a.RNA polymerase assembles a strand of mRNA complementary to the noncoding strand of DNA. b.RNA polymerase binds to a gene’s promoter. c.RNA polymerase assembles a strand of mRNA complementary to the coding strand of DNA. d.RNA polymerase moves over the gene and unzips the double helix to form a “transcription bubble.”

Which of the following are steps of transcription? Select all that apply. a.RNA polymerase assembles a strand of mRNA complementary to the noncoding strand of DNA. b.RNA polymerase binds to a gene’s promoter. c.RNA polymerase assembles a strand of mRNA complementary to the coding strand of DNA. d.RNA polymerase moves over the gene and unzips the double helix to form a “transcription bubble.”

Name: Which of the following are steps of transcription? Select all that app
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Description: Which of the following are steps of transcription? Select all that apply. a.RNA polymerase assembles a strand of mRNA complementary to the noncoding strand of DNA. b.RNA polymerase binds to a gene’s promoter. c.RNA polymerase assembles a strand of mR

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 6RQ: A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA...

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What are the role of Transcription proteins? Explain this in 500 words, explain at your own words
Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c) AAATCTACTACGATT d) GGGTTGGGTTGGGTT
At what point in gene expression do you think the process could be regulated? Select all that apply: a) Before transcription begins. b) During the process of transcription. c) During the process of translation. d) After translation ends.
Which of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.
A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNA
Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes, but it depends on where the transcription factor binds in the promoter b. Yes, but it depends on other proteins that might act with the transcription factor c. No, transcription factors are always either activators or repressors d. Yes, but only if a mutation happens
Which of the following are steps of transcription? Select all that apply. A. RNA polymerase binds to a gene’s promoter. B. RNA polymerase moves over the gene and unzips the double helix to form a “transcription bubble.” C. RNA polymerase assembles a strand of mRNA complementary to the coding strand of DNA. D. RNA polymerase assembles a strand of mRNA complementary to the noncoding strand of DNA.
Sickle cell anemia is a disease caused by a mutation at the genotypic level. A person with two copies of the gene has the disease, but a person with one copy of the gene does not have the disease. The diagram shows how this mutation affects an organism. Use the image to answer the question. Which conclusion can you draw based on the diagram? A. The mutation changed the amino acid sequence during the translation step. B. A mutation caused the information in DNA to change during the transcription step. C. A change in the DNA sequence can be carried over to the translation and transcription steps. D. The change that affected the translation and transcription steps does not affect the organism.
Mutations that occur at the end of a gene may alter the sequence of the gene and prevent transcriptional termination. A. What types of mutations would prevent ρ-independent termination? B. What types of mutations would prevent ρ-dependent termination? C. If a mutation prevented transcriptional termination at the end of a gene, where would gene transcription end? Or would it end?
f you made a change in the promoter sequence in the DNA that inactivates the promoter, what would happen at the RNA level? A-Nothing, because the RNA would be made as usual B-Transcription factors would be unable to bind and the RNA polymerase would not be recruited to the DNA, so no RNA would be made. C-The mutation of the DNA would be carried through to the RNA sequence. D-The DNA helicase would not be able to recognize and bind the DNA, so the RNA would not be made. EXPLAIN WHY THE ANSWER YOU CHOOSE IS CORRECT
Which of the following will increase the rate of transcription? a. Activation of a transcriptional repressor b. Inhibition of a transcriptional activator c. Histone methylation leading to chromatin compaction d. Removal of RNA polymerase
Which statement/s is/are TRUE about transcription?A. During transcription, DNA polymerase binds to RNA and separates the DNA strands.B. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA.C. RNA polymerase binds only to DNA promoters, which have specific base sequences.D. Promoters are signals in RNA that indicate to RNA polymerase where to begin transcription.E. Transcription occurs in the 3’ to 5’ direction with respect to the growing mRNA strand.