From the list of answers below (A-D) select the correct answer(s). There may be more than one correct answer. B. Identical twins have the same genome, as well as the same epigenome. C. Epigenetic changes can be introduced or changed by social experience. D. Epigenetic changes are permanent and once acquired can never be changed. A. Identical twins have the same genome, but may have different epigenomes.
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- A scientist does an experiment in which she removes the offspring of rats from their mother at birth and has her genetics students feed and rear the offspring. Assuming that the students do not lick and groom the baby rats as the mother rats normally do, what long-term behavioral and epigenetic effects would you expect to see in the rats when they grow up?What would be required to prove that a phenotype is caused by an epigenetic change?The introduction to this chapter describes the long-term effects of famine on people conceived during the Dutch Hunger Winter. a. What evidence suggests that these are epigenetic effects? b. What additional evidence would help to demonstrate that these changes are due to epigenetic changes?
- A. Which genes could be used to monitor the process of the disease? B.  If you worked for a drug company developing a treatment for the cancer, which genes would you target to turn on in cancer cells? C. Which genes would you target to turn off in cancer cells?Suppose that you could undergo genetic testing at age 18 for susceptibility to a genetic disease that would not appear until middle age and has no available treatment. a. What would be some of the possible reasons for having such a genetic test and some of the possible reasons for not having the test? b. Would you personally want to be tested? Explain your reasoning.What are epigenetic modifications? a. the addition of reversible changes to histone proteins and DNA b. the removal of nucleosomes from the DNA c. the addition of more nucleosomes to the DNA d. mutation of the DNA sequence
- First, compare and contrast genetic inheritance vs epigenetic inheritance. Next, explain why prion diseases are considered an epigenetic phenomenon. I want long detailed answerDo genes have a role to play in epigenetics and variations in epigenetic patterns between individuals? Explain your answer.If you were to design an epigenetic experiment, how would you design one? Keep in mind a good experiment should have a strong, testable hypothesis, an overall goal, and expected results. What did agouti mice elucidate about how epigenetics are functioning? How does the structure of DNA change how genes are expressed? What are the different epigenetic modifications and what do they do?
- A student wants to observe how the environment of bacteria affects gene expression. How should the experiment be designed? A. exposing the same species of bacteria to the same carbohydrates in each sample B. exposing the same species of bacteria to different carbohydrates in each sample C. exposing different species of bacteria to the same carbohydrates in each sample D. exposing different species of bacteria to different carbohydrates in each sampleIn one cell, gene C is expressed, whereas in another cell, geneC is inactive. After the cells are fused experimentally, both copiesof gene C are expressed. This observation could be explained bya. a cis-epigenetic mechanism.b. a trans-epigenetic mechanism.c. DNA methylation.d. both a and b.Which of the following is not a major mechanism of epigenetic change? a. DNA methylation b. Alteration of a DNA base sequence in a promoter c. Histone acetylation d. Action of RNA molecules