During gene expression, which information flows in the correct order? A. RNA --> Transcription--> DNA B. Proteins --> Translation --> RNA C. DNA --> Transcription --> RNA D. RNA --> Transcription --> Proteins E. DNA --> Translation --> RNA

During gene expression, which information flows in the correct order? A. RNA --> Transcription--> DNA B. Proteins --> Translation --> RNA C. DNA --> Transcription --> RNA D. RNA --> Transcription --> Proteins E. DNA --> Translation --> RNA

Name: During gene expression, which information flows in the correct order?
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Description: During gene expression, which information flows in the correct order? A. RNA --> Transcription--> DNA B. Proteins --> Translation --> RNA C. DNA --> Transcription --> RNA D. RNA --> Transcription --> Proteins E. DNA --> Translation --> RNA

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 11RQ: Post-translational control refers to: a. regulation of gene expression after transcription b....

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What determines which transcription factors will be able to regulate a particular gene's expression? A. The collection of control element sequences that are associated with that gene B. The location of that gene sequence (which chromosome it is located on) C. The sequence of introns present in that gene D. The sequence of exons present in that gene ..
Which of the following statament is NOT TRUE about gene expression?a. The expression of genes that code for proteins includes two stages: replication and translationb. Translation is the synthesis of a polypeptide using the information in the mRNA.c. During gene expression, the information encoded in genes is used to make specific polypeptide chains or RNA molecules.d. Gene expression is the process by which DNA directs the synthesis of proteins
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.
Why is regulating transcription the main way that cells control gene expression? A. Because transcription is the last step in gene expression, stopping here ensures that the cell has a stockpile of proteins to prepare them from all unexpected environmental changes. B. Because transcription involves interactions with DNA, preventing transcription reduces the changes of mutation in the cell’s genome. C. Because transcription is the first step in gene expression, stopping at transcription reduces the amount of energy and resources used by producing unnecessary gene products. D. Because transcription is the shortest step in gene expression, preventing transcription has little effect on the rate of protein production.
How is translation different in prokaryotes and eukaryotes? a. In prokaryotes, because they do not have a nucleus, the translation of mRNA occurs while it is being transcribed b. In prokaryotes, pre-mRNA translation before transcription occurs within the cell c.In prokaryotes, reverse trancriptase simultaneously translates and transcribes mRNAd.In prokaryotes, functional mRNA allows for translation to be skipped, and proteins are made during transcription
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
Select the most complete list of correct structures involved in the process of transcription a. mRNA, amino acids, ribosomes, polypeptide chains b. DNA, mRNA, RNA polymerase, a promoter c. mRNA, polypeptide chains, RNA polymerase d. DNA, mRNA, amino acids
How is transcription directly controlled in eukaryotic cells? a. through the use of phosphorylation b. by means of apoptosis c. using transcription factors and activators d. when chromatin is packed to keep genes turned on e. None of these are correct.
A signaling pathway causes a transcription factor binding to a particular promoter. What effect does this have on the cell? O A. The DNA region near the promoter becomes more methylated. O B. The DNA region near the promoter becomes less methylated. O C. The gene related to this promoter has increased transcription. D. The gene related to this promoter has decreased transcription. red MacBook Air 吕口 F3 D00 F4 F6 F7 F8 88 # $ % & * 2 3 4 6 7 8
What will result from the binding of a transcription factor to an enhancer region? a. decreased transcription of an adjacent gene b. increased transcription of a distant gene c. alteration of the translation of an adjacent gene d. initiation of the recruitment of RNA polymerase
What property prevents the ligands of cell-surface receptors from entering the cell? a. The molecules bind to the extracellular domain. b. The molecules are hydrophilic and cannot penetrate the hydrophobic interior of the plasma membrane. c. The molecules are attached to transport proteins that deliver them through the bloodstream to target cells. d. The ligands are able to penetrate the membrane and directly influence gene expression upon receptor binding.
What is the genetic code? a. The relationship between a three-base codon sequence and an amino acid or the end of translation b. The entire base sequence of an mRNA molecule c. The entire sequence from the promoter to the terminator of a gene d. The binding of tRNA to mRNA