Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 10, Problem 4SQ
Summary Introduction
Introduction: Transcription is the machinery by which RNA is synthesized where a template strand of DNA is exploited by specific polymerases enzyme (RNA polymerases) to produce RNA molecules. Synthesized RNA molecules are messenger RNA (mRNA), transfer RNA (tRNA), ribosomal RNA (rRNA), small RNAs–small nuclear RNA (snRNA), and microRNA (miRNA). Certain proteins are responsible for the production and decline of the RNA strand for transcription. Such proteins are called as transcription factors.
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The role of p53 in normal cells is toa. create cancer-blocking mutations.b. trigger unrestrained cell division.c. detect damaged DNA.d. splice exons together in the correct sequence.
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
Proteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c. operators b. transcription factors d. enhancers
Chapter 10 Solutions
Biology: The Unity and Diversity of Life
Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Gene expression does not vary by ___ . a. cell...Ch. 10 - Binding or ___ to ___ in DNA can increase the rate...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 4SQCh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Prob. 6SQCh. 10 - Prob. 7SQ
Ch. 10 - Prob. 8SQCh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SQCh. 10 - Prob. 11SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Prob. 13SQCh. 10 - Which of the following statements is incorrect? a....Ch. 10 - Prob. 15SQCh. 10 - Explain why somebut not allof an organism's genes...Ch. 10 - Do the same mechanisms that govern gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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- Choose all items that regulate the transcription of mRNAs.Group of answer choices A. Transcription factor proteins B. Intron sequences C.. DNA promoter sequences D. DNA enhancer regions E. Exon sequencesarrow_forwardWhich of the following statements about the DNA in one of your brain cells is true? (A) Most of the DNA codes for protein. (B) The majority of genes are likely to be transcribed. (C) It is the same as the DNA in one of your liver cells. (D) Each gene lies immediately adjacent to an enhancer.arrow_forwardAt 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.arrow_forward
- Gene expression does not vary by_______ . a. cell type c. stage of development b. extracellular conditions d. the genetic codearrow_forwardA 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 RNAarrow_forwardPost-translational control refers to: a. regulation of gene expression after transcription b. regulation of gene expression after translation c. control of epigenetic activation d. period between transcription and translationarrow_forward
- A mutation occurs in a gene, resulting in it being expressed at the wrong time during development. Where is the mutation most likely to be found? a) In the transcription start site (TSS) b) In a TF binding site in the cis-regulatory region c) In the coding sequence d) In the 5' UTRarrow_forwardWhich statement regarding UTRs is TRUE? a) Transcription begins at the start of the 5' UTR b) Translation begins at the start of the 5' UTR c) The 5' and 3' UTRs are spliced from the mRNA transcript d) The translation stop codon is found downstream of the 3' UTRarrow_forwardHow 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.arrow_forward
- Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c) AAATCTACTACGATT d) GGGTTGGGTTGGGTTarrow_forwardResearch genetic diseases and find one that interests you. In your initial response, describe the known causes of this disease. Is it a flaw in DNA transcription/translation, or is it a form of gene suppression or expression? How do you know?arrow_forwardWhat strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging of only one cell type in an acute slice of the brain? A.The use of fluorescent protein expression inhibitors in other cells B.The injection of a recombinant virus causing the death of other cells C.The use of a promoter specific to these cells D.Activation of membrane receptors specific to these cellsarrow_forward
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