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.
Explain how coat color in mice is epigenetically modified by dietary factors.
Phenotypes can be controlled by many processes besides the actual genotype present. Explain one example of epigenetics that can control phenotype expression
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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- "Tobacco smoking triggers a large number of somaticmutations and epigenetic changes". Define about this ?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_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_forward
- Explain how epigenetic changes may be targeted to specific genes.arrow_forwardDefine Epigenetic changes. Are epigenetic changes the same thing as mutations? Explain why or why not.arrow_forwardWhich of the following is an example of epigenetic modulation? a) Ionization-induced DNA damage b) Single nucleotide polymorphism (SNP) c) Free-radical induced DNA damage d) Histone modifications of DNAarrow_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_forwardWhat would be required to prove that a phenotype is caused by an epigenetic change?arrow_forwardAn epigenetic study of maternal care in mice was used to study transgenerational epigenetic inheritance. This study found that A. Increased maternal care during childhood resulted in lower stress levels as adults and decreased maternal care with their own offspring B. Increased maternal care during childhood resulted in lower stress levels as adults and increased maternal care with their own offspring. C. Increased maternal care during childhood resulted in higher stress levels as adults and decreased maternal care with their own offspring. D. Increased maternal care during childhood resulted in higher stress levels as adults and increased maternal care with their own offspring.arrow_forward
- What condition must be fulfilled in order for histone modification to be considered an epigenetic phenomenon? Does DNA methylation meet that criterion? Explain.arrow_forwardThe human phenotype is regulated by epigenetic control of gene expression. Discuss the three main types of epigenetic regulation, illustrating your answer with examples of diseases arising from impairment of each of these processes. 600 words.arrow_forwardEpigenetic marks regulate gene expression. Which epigenetic mark is NOT associated with positive gene expression? A. Histone acetylation B. Histone Methylation C. De-methylated DNA D. Methylated DNAarrow_forward
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