Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 16, Problem 13CONQ
Using coat color in mice and the development of female honeybees as examples, explain how dietary factors can cause epigenetic modifications, leading to
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Using coat color in mice and the development of female honeybees as examples, explain how dietary factors cause epigenetic modifications and thereby lead to phenotypic effects.
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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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- Phenotypes can be controlled by many processes besides the actual genotype present. Explain one example of epigenetics that can control phenotype expressionarrow_forwardDescribe a potential strategy for the treatment of epigenetic disease.arrow_forwardExplain how coat color in mice is epigenetically modified by dietary factors.arrow_forward
- Often, the physical characteristics of genetically identical twins become increasingly different as they age, even at the molecular level. Explain why this is so from the point of view of epigenetics.arrow_forwardDiscuss the similarities and differences of phenotypic variations that are caused by epigenetic gene regulation versus variation in gene sequences (epigenetics versus genetics).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
- Define epigenetics. Are all epigenetic changes passed from parentto offspring? Explain.arrow_forwardWhat is the key difference between cis- and trans-epigenetic mechanisms for maintaining an epigenetic modification? We considered genomic imprinting of the Igf2 gene, in whichoffspring express the copy of the gene they inherit from their father,but not the copy they inherit from their mother. Is this a cisora trans-epigenetic mechanism?arrow_forwardStudies on monkeys have provided insight on the role of maternal care on the epigenome. Imagine you have 3 groups of monkeys. Group A: Monkeys raised by their biological mother. Group B: Monkeys raised by other monkeys that are not their biological mother. Group C: Monkeys raised by a human surrogate nurse. You then study the behavioural and epigenetic patterns of these monkeys. Which of the findings would be plausible from this study? A. Monkeys from group A will most likely become alcoholics. B. Monkeys from group B will be equally anxious compared to group C since neither were raised by their biological mother. C. Monkeys from group C will have a significantly different epigenomic pattern compared to group A. D. Groups A, B and C will have similar epigenomic patterns.arrow_forward
- An epigenetic study of maternal care in mice was used to study transgenerational epigenetic inheritance. This study found that increased maternal care during childhood resulted in lower stress levels as adults and decreased maternal care with their own offspring. Increased maternal care during childhood resulted in lower stress levels as adults and increased maternal care with their own offspring. Increased maternal care during childhood resulted in higher stress levels as adults and decreased maternal care with their own offspring. Increased maternal care during childhood resulted in higher stress levels as adults and increased maternal care with their own offspring.arrow_forwardIn general, explain how epigenetic modifications are an important mechanism for developmental changes that lead to specialized body parts and cell types. How do the protein complexes called the trithorax and polycomb groups participate in this process?arrow_forwardDiscuss how epigenetic processes can be modified by environmental factors.arrow_forward
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