BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 16, Problem 6A
In the cell cycle, cyclin proteins are produced in concert with the cycle. This likely involves
a. control of initiation of transcription of cyclin genes, and ubiquitination of cyclin proteins.
b. alternative splicing of cyclin genes to produce different cyclin proteins.
c. RNA editing to produce the different cyclin proteins.
d. transcription/translation coupling.
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Students have asked these similar questions
Transcription factors such as myoD control gene expression in which of the following ways?
Group of answer choices ONLY ONE RIGHT ANSWERZ:
A. direct control of transcription of specific genes
B. control of the cell cycle
C. general control of transcription through chromatin modification
D. control of RNA splicing
E. control of translation
What is a possible outcome of the addition of a transcription factor such as Myod to the nucleus of a cell? Assume that there are no other factors to either activate or prevent the response of the cell.
Group of answer choices
A) Production of mRNA from genes that were previously not expresed
B)adding methyl groups to DNA
C)prevention of protein synthesis
D)uncoiling of the chromatin to allow transcription
The interphase is the part of the eukaryotic cell cycle that is most transcriptionally active. Gene regulation during this phase involves changes in the chromatin.
a) What is chromatin?
b) How can the chromatin structure change?
Chapter 16 Solutions
BIOLOGY
Ch. 16.1 - Prob. 1LOCh. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.2 - Explain how proteins can interact with base-pairs...Ch. 16.2 - Prob. 2LOCh. 16.3 - Prob. 1LOCh. 16.3 - Prob. 2LOCh. 16.3 - Explain control of gene expression in the trp...Ch. 16.4 - Prob. 1LOCh. 16.4 - Prob. 2LO
Ch. 16.4 - Prob. 3LOCh. 16.5 - Describe at least two kinds of epigenetic mark.Ch. 16.5 - Explain the function of chromatin-remodeling...Ch. 16.6 - Prob. 1LOCh. 16.6 - Prob. 2LOCh. 16.7 - Prob. 1LOCh. 16.7 - Prob. 2LOCh. 16 - Prob. 1DACh. 16 - What advantage might a bacterium gain by linking...Ch. 16 - Prob. 2IQCh. 16 - Prob. 3IQCh. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2UCh. 16 - Prob. 3UCh. 16 - The lac operon is controlled by two main proteins....Ch. 16 - In eukaryotes, binding of RNA polymerase to a...Ch. 16 - In eukaryotes, the regulation of gene expression...Ch. 16 - In the trp operon, the repressor binds to DNA a....Ch. 16 - Prob. 1ACh. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...Ch. 16 - Regulation by small RNAs and alternative splicing...Ch. 16 - Eukaryotic mRNAs differ from prokaryotic mRNAs in...Ch. 16 - In the cell cycle, cyclin proteins are produced in...Ch. 16 - A mechanism of control in E. coli not discussed in...Ch. 16 - You have isolated a series of mutants affecting...Ch. 16 - Examples of positive and negative control of...Ch. 16 - What forms of eukaryotic control of gene...Ch. 16 - The number and type of proteins found in a cell...
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- You add a chemical to a cell that prevents all of the chromatin from uncoiling so that the chromosomes remain highly coiled, even after the completion of mitosis. If you add a transcription factor that triggers the transcription of mRNA for the protein Pitx in this situation what would happen. Group of answer choices A)All transcription of Pitx is stopped by the transcription factor B)Nothing because the Pitx gene is already being transcribed at the maximum ratea C)Nothing, because the Pitx gene cannot be transcribed in this highly coild state D)The amount of transcription of Pitx is greatly increasedtarrow_forwardWhich of these is NOT true of nucleosomes? A. Some post-translational modifications to histone proteins serve as binding sites for transcription factors. B. The position of nucleosomes is fixed on the genome and can not be changed. C. The position and post-translational modifications of histones can be inherited through mitosis. D. The binding between DNA and histone proteins can be disrupted by post-translational modifications.arrow_forwardCan 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 happensarrow_forward
- 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.arrow_forwardCharacterize the differences between tumor cells and normal cells in terms of the following properties. In cancer cells, how might each of these properties contribute to tumor progression? a) contact inhibition b) autocrine stimulation c) apoptosis d) senescence due to telomere shortening e) genomic stability f) angiogenises g) metastasisarrow_forwardChromatin remodeling is affected by two processes, DNA methylation and a. base substitution b. histone covalent modifications c. ultraviolet radiation d. transcription factor bindingarrow_forward
- In eukaryotes, chromatin remodeling plays an important role is gene regulation. This is because a. repositioning of the nucleosomes makes DNA accessible to transcription regulatory proteins b. the nucleosomes contain important regulatory regions c. chromatin remodeling activates gene expression d. chromatin remodeling represses gene expressionarrow_forwardStem cells (cells with little or no determination) are useful in many kinds of biological research for which of the following reasons? Group of answer choices A. they do not have particular cell fates B. None of their DNA is methylated C. They have unique cytoplasmic determinants D. They have no microRNA E. They have not differentiatedarrow_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
- In a wild-type cell, the function of a protein encoded by a tumor-suppressor gene is to cause a cell to ______. A.) stop dividing B.)extend its telomeres C.) grow toward a new blood vessel D.) respond to a growth factorarrow_forwardRegulation of Gene Expression by Chromatin Modification is Local and Dynamic! What does the statement above mean?arrow_forwardA Patients with an inherited cancer have a mutation in a zinc-finger motif of P21 (a cell-cycle regulatory gene). Which of the following is the most likely result of this A) Decreased binding of a transcription factor to a DNA sequence B) Enhanced binding of hormones to receptors C) Enhanced transport of a hormone receptor complex into the nucleus D) Stimulation of mRNA synthesis E) "Unzipping" of leucine-rich helicesarrow_forward
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