Which of the following statements about epigenetics is correct? 1. Twins have identical epigenetic patterns because their DNA sequences are identical. 2. Maternal care can have a significant impact on the epigenome. 3. Your epigenome is not heritable. 4. Schizophrenic patients may benefit from epigenetic drugs. A. 1, 2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1, 2, 3, and 4 are correct
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- 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?Epigenetics is a HUGE new field in understanding health factors that are transmitted from generation to generation beyond simple genetic inheritance. For example: epigenetic factors contribute to the onset of disease by triggering underlying genetic information. What do you think about that?Why would a scientist wish to induce mutations? a. to increase the number of mutated phenotypes b. to create mutations in specific genes c. to test for carcinogen activity d. to create tumors for cancer research e. because she was crazier than a mutated bedbug
- Which of the following describes an oncogene Group of answer choices A. a gene that stimulates cell division that is malfunctioning B. a cell whose normal function is to cause cancer C. a gene that controls body axes D. a hox gene E. a gene that prevents tumorsFirst, compare and contrast genetic inheritance vs epigenetic inheritance. Next, explain why prion diseases are considered an epigenetic phenomenon. I want long detailed answerWhich 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
- 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 samplea. When gene probes, fi ngerprinting, and sequencing make it possible for you to know about genetic diseases in you or one of your children, would you wish to use this technology to fi nd out? b. What if it were used as a screen for employment or insurance? c. Most of us would agree to growth hormone therapy for a child with dwarfi sm, but how do we deal with parents who want to give growth hormones to their 8-year-old son so that he will be “better at sports”?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?
- Mrs. Xexy Lucero, GO, 25 years old asks Nurse Zasha about pre symptomatic genetic testing for Huntington's disease. Nurse Zasha should base her response on which of the following? (Select all that apply) a. One of the parents died of Huntington's disease b. if the woman is negative for the gene, her children should be tested to see whether or not they are carriers c. Presymptomatic testing cannot predict whether or not the gene will be expressed. d. If the woman is positive for the gene Huntington's, she will develop the disease later in life e. Both parents are carriersA geneticist interested in immune function induces random mutations in a number of specific genes in mice and then determines which of the resulting mutant mice have impaired immune function. This procedure is an example of a. forward genetics. b. reverse genetics. c. both forward and reverse genetics. d. neither forward nor reverse geneticsEpigenetic changes maya. be programmed during development.b. be caused by environmental changes.c. involve changes in the DNA sequence of a gene.d. be both a and b.