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 16.1, Problem 4COMQ
Epigenetic changes may
a. 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.
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Students have asked these similar questions
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.
Epigenetic 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.
Developmental abnormalities can result from:
1. Under expression of some genes
2. All of these choices are correct
3. Inappropriate interaction among gene products that were expressed in the wrong amounts and wrong time
4. Over expression of some genes
5. corrupted timing of the normal time genes are expressed
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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- Define the following terms: a. epigenetics b. CpG island c. epimutation d. DNA methylation e. histone acetylationarrow_forwardFrom the list of answers (A-D) below, select the correct anwer(s). There may be more than one answer. B. During the process of cell division all epigenetic changes are lost. A. Epigenetic changes survive cell division. C. Epigenetic changes have NO role in cell differentiation. D. Each of the 200 types have the same genome, but distinct epigenome, which is important for the process of cell differentiation.arrow_forwardThe only thing that effects gene expression is if the gene is dominant Choose: A. Yes, all genes are either dominant or recessive B. No, all dominant genes are the best option but might not be expressed C. No, there are other factors that can determine gene expression D. Yes, all genes can be expressed if your cell wants toarrow_forward
- 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 moleculesarrow_forwardTargeted therapies are used in patients with a set gene expression pattern. A targeted therapy that prevents the activation of the estrogen receptor in breast cancer would be beneficial to which type of patient? a. patients who express the EGFR receptor in normal cells b. patients with a mutation that inactivates the estrogen receptor c. patients with lots of the estrogen receptor expressed in their tumor d. patients that have no estrogen receptor expressed in their tumorarrow_forwardIn 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.arrow_forward
- Mutations to proto-oncogenes act toa. increase cell division. c. repress oncogenes.b. increase DNA repair. d. decrease cell divisionarrow_forwardA key event that initially determines female or male development in Drosophila is the a. transcription of the Sxl gene. b. alternative splicing of the Sxl pre-mRNA. c. expression of the ix gene. d. expression of the her gene.arrow_forwardWhich of the following is NOT a way in which proto-oncogenes can change to become genes that induce cancer? Group of answer choices a. changes in a control element (enhancer) to increase transcription b. gene amplification c. changes in DNA sequence to produce a product that degrades rapidly d. movement of the gene adjacent to a different control element to increase transcription e. changes in DNA sequence to produce a product that isarrow_forward
- With regard to cancer cells, which of the following are true? A. Cancer cells are clonal, meaning that they are derived from many different cells that all underwent the same clonal mutation. Cells usually accumulate many mutations over time, and this results in cancerous growth. B. Almost all cancers are caused by oncogenic viruses. no Benign tumors are dangerous because they can easily invade surrounding tissue and spread to other locations in the body. DE. Cancer cells are unable to control their division.arrow_forwardWhat have epigenetic monozygotic twin studies proven? A. Twins have identical epigenomes because their genomic sequences are identical. B. The environment has an effect on the epigenome very early in life. C. Changes in the epigenome leads to significant changes in the genomic sequence. O D. Life experiences have a more dramatic effect on the genome than the epigenome.arrow_forwardWhich of the following statement(s) is/are true with regard to positional information in Drosophila? A. Morphogens are a type of molecule that conveys positional information. B. Morphogenetic gradients are established only in the oocyte, prior to fertilization. C. Cell adhesion molecules also provide a way for a cell to obtain positional information.arrow_forward
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