Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 16, Problem 11CONQ
Describe the molecular steps by which polycomb group complexes cause epigenetic gene silencing.
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Describe the molecular steps by which polycomb group complexescause epigenetic gene silencing.
In general, explain how epigenetic modifications are an important mechanism for developmental changes that lead to specialized body parts and cell types. How do the trithorax and polycomb group complexes participate in thisprocess?
List and briefly describe five types of molecular mechanisms thatmay underlie epigenetic gene regulation.
Chapter 16 Solutions
Genetics: Analysis and Principles
Ch. 16.1 - Which of the following are examples of molecular...Ch. 16.1 - 2. An epigenetic modification to a specific gene...Ch. 16.1 - Prob. 3COMQCh. 16.1 - Epigenetic changes may a. be programmed during...Ch. 16.2 - 1. For the Igf2 gene, where do de novo methylation...Ch. 16.2 - 2. For XCI to occur, where are the Xist and Tsix...Ch. 16.2 - 3. Which of the following possibilities could...Ch. 16.3 - 1. Which of the following statements about...Ch. 16.3 - The effects of paramutation may vary with regard...Ch. 16.4 - 1. When mice carrying theallele exhibit a darker...
Ch. 16.4 - 2. If the VIN3 gene had a loss-of-function...Ch. 16.5 - Prob. 1COMQCh. 16.5 - Prob. 2COMQCh. 16 - Prob. 1CONQCh. 16 - List and briefly describe five types of molecular...Ch. 16 - Prob. 3CONQCh. 16 - What is the key difference between cis and...Ch. 16 - Prob. 5CONQCh. 16 - Prob. 6CONQCh. 16 - 7. Outline the molecular steps in the process of...Ch. 16 - Prob. 8CONQCh. 16 - 9. In general, explain how epigenetic...Ch. 16 - 10. What are the contrasting roles of trithorax...Ch. 16 - Describe the molecular steps by which polycomb...Ch. 16 - Prob. 12CONQCh. 16 - Using coat color in mice and the development of...Ch. 16 - How can environmental agents that do not cause...Ch. 16 - Prob. 15CONQCh. 16 - Prob. 16CONQCh. 16 - Explain how the VIN3/PRC2 complex specifically...Ch. 16 - Prob. 1EQCh. 16 - In the experiments described in Figure 16.8,...Ch. 16 - Prob. 3EQCh. 16 - A research study indicated that an agent in...Ch. 16 - Lets suppose you were interested in developing...Ch. 16 - Prob. 6EQCh. 16 - Prob. 7EQCh. 16 - 2. Discuss the similarities and differences of...
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- What are the functions of transcriptional activator proteins and repressor proteins? Explain how they work at the molecular level.arrow_forwardWhat condition must be fulfilled in order for histone modification to be considered an epigenetic phenomenon? Does DNA methylation meet that criterion? Explain.arrow_forwardA gene, which we will call gene C, can be epigenetically modified in such a way that its expression in some cells is permanently silenced. Describe how you could conduct cell-fusion experiments to determine if a cis- or a trans-epigenetic mechanism is responsible for maintaining the silencing of gene C.arrow_forward
- How chromatin remodeling and chromatin modifications are necessary to make cis-acting regulatory sequences accessible to binding ?arrow_forwardDescribe the basic models of transcription factor families, the two transcription factors each representing these models, and how they function molecularly by specifying some of their functions.arrow_forwardDescribe the methods used to identify the location of transcription-control elements in promoter-proximal region of genes?arrow_forward
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