Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter ST.1, Problem 9RQ
Summary Introduction
To determine: The different strategies used for correction of recessive and dominant mutations using CRISPR-Cas.
Introduction: CRISPR-Cas has various functions. One of the functions is to treat or cure a disease. Various human genetic diseases can be treated using this CRISPR-Cas technology. The disease-causing mutation present in the genome is corrected using this technology.
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Gene expression can be disrupted by techniques such as homologous recombination and RNA interference. What is the functional difference between these two methods in terms of the ultimate effect on gene expression? Why might homologous recombination or an alternative genome-editing method (e.g., CRISPR/Cas9) be preferred over RNA interference?
What are some ways that CRISPR-Cas systems have been enhanced and modified to provide additional functions?
What is the difference between nonhomologous end-joining (NHEJ) and homology-directed repair (HDR) in the context of genome editing?
Chapter ST Solutions
Concepts of Genetics (12th Edition)
Ch. ST.1 - What is the difference between innate immunity and...Ch. ST.1 - What evidence demonstrates that CRISPR-Cas is an...Ch. ST.1 - Prob. 3RQCh. ST.1 - Why was the type II CRISPR-Cas9 system of S....Ch. ST.1 - Prob. 5RQCh. ST.1 - What is a single guide RNA, and what role does it...Ch. ST.1 - What is the difference between nonhomologous...Ch. ST.1 - Prob. 8RQCh. ST.1 - Prob. 9RQCh. ST.1 - Prob. 1DQ
Ch. ST.1 - Prob. 2DQCh. ST.1 - What ethical and safety considerations must be...Ch. ST.1 - Recall (from Chapter 18) how miRNAs and the...Ch. ST.1 - Describe two different ways in which engineered...Ch. ST.1 - Consider the following human genetic diseases:...Ch. ST.1 - What are the different concerns about off-target...Ch. ST.2 - What is VNTR profiling, and what are the...Ch. ST.2 - Prob. 2RQCh. ST.2 - Describe capillary electrophoresis. How does this...Ch. ST.2 - What are the advantages and limitations of...Ch. ST.2 - Prob. 5RQCh. ST.2 - Explain why mitochondrial DNA profiling is often...Ch. ST.2 - Prob. 7RQCh. ST.2 - Describe the database system known as CODIS. What...Ch. ST.2 - Prob. 9RQCh. ST.2 - Prob. 10RQCh. ST.2 - Given the possibility that synthetic DNA could be...Ch. ST.2 - Prob. 2DQCh. ST.2 - If you were acting as a defense lawyer in a murder...Ch. ST.2 - The phenomena of somatic mosaicism and chimerism...Ch. ST.3 - What is pharmacogenomics, and how does it differ...Ch. ST.3 - Describe how the drug Herceptin works. What types...Ch. ST.3 - Prob. 3RQCh. ST.3 - Prob. 4RQCh. ST.3 - Prob. 5RQCh. ST.3 - Prob. 6RQCh. ST.3 - Why is it necessary to examine gene-expression...Ch. ST.3 - Prob. 8RQCh. ST.3 - Prob. 1DQCh. ST.3 - Prob. 2DQCh. ST.3 - How can we ensure that a patients privacy is...Ch. ST.3 - As gene tests and genomic sequences become more...Ch. ST.4 - How do genetically modified organisms compare with...Ch. ST.4 - Prob. 2RQCh. ST.4 - Prob. 3RQCh. ST.4 - Prob. 4RQCh. ST.4 - Describe the mechanisms by which the Cry proteins...Ch. ST.4 - Prob. 6RQCh. ST.4 - Prob. 7RQCh. ST.4 - Describe how plants can be transformed using...Ch. ST.4 - How do positive and negative selection techniques...Ch. ST.4 - Prob. 10RQCh. ST.4 - What are the laws regulating the development,...Ch. ST.4 - Do you think that foods containing GM ingredients...Ch. ST.4 - Prob. 3DQCh. ST.5 - What is gene therapy?Ch. ST.5 - Prob. 2RQCh. ST.5 - When treating a person by gene therapy, is it...Ch. ST.5 - Describe two ways that therapeutic genes can be...Ch. ST.5 - Explain how viral vectors can be used for gene...Ch. ST.5 - Prob. 6RQCh. ST.5 - Explain an example of a successful gene therapy...Ch. ST.5 - Prob. 8RQCh. ST.5 - Prob. 9RQCh. ST.5 - Prob. 10RQCh. ST.5 - Prob. 11RQCh. ST.5 - Prob. 1DQCh. ST.5 - Who should be treated by gene therapy? What...Ch. ST.5 - The lifetime costs for treatment of conditions...Ch. ST.5 - Should CRISPR-Cas or other techniques be used for...Ch. ST.5 - Prob. 5DQCh. ST.6 - What are RFLP markers and how were they used to...Ch. ST.6 - Why was information from Nancy Wexlers large...Ch. ST.6 - How do aggregates of mHTT protein form?Ch. ST.6 - Why are the results from the inducible mouse model...Ch. ST.6 - Based on the results from mouse models, is it...Ch. ST.6 - What do the results from creating transgenic mice...Ch. ST.6 - What steps lead from the binding of the mHTT...Ch. ST.6 - Summarize the approaches to therapy designed to...Ch. ST.6 - There are nine known progressive neurodegenerative...Ch. ST.6 - Prob. 2DQCh. ST.6 - Prob. 3DQCh. ST.6 - Why is there an inverse correlation between the...Ch. ST.6 - Discuss the ethical issues raised by the use a...
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- How does bisulfite treatment coupled with PCR enable the identification of DNA methylation? And, How could a Southern blot be used to determine if a given DNA sequence contains methylated CpGs in paper "Amyloid-β Alters the DNA Methylation Status of Cell-fate Genes in an Alzheimer's Disease Model." Taher, N., McKenzie, C., Garrett, R., Baker, M., Fox, N., & Isaacs, G. D. (2014). Amyloid-β alters the DNA methylation status of cell-fate genes in an Alzheimer’s disease model. Journal of Alzheimer’s Disease: JAD, 38(4), 831–844. https://doi.org/10.3233/JAD-131061arrow_forwardAre double-knockout animals (DKOs) and even triple-knockoutanimals (TKOs) also possible ?arrow_forwardNow that you understand how the CRISPR-Cas9 system works, think back to the experiments discussed in the introduction to this chapter, in which researchers used CRISPR-Cas9 genome editing to treat mice with Duchenne muscular dystrophy. Why did the researchers choose to cut out the entire exon 23 in the mice with the disorder? Why not replace the specific mutation using a donor piece of DNA and homologous recombination? Propose some possible explanations.arrow_forward
- what are BIOLOGICAL IMPLICATIONS OF CRISPR-CAS9?arrow_forwardPropose some specific uses of a modified CRISPR-Cas system as a general RNA-guided device for altering cellular functions. What might these functions be, and how could CRISPR-Cas be used to study them?arrow_forwardDescribe three possible uses of site-directed mutagenesis.arrow_forward
- With regard to the CRISPR-Cas system that defends bacteriaagainst bacteriophage attack, what happens during the adaptation,expression, and interference phases? When a bacterium is exposed toa particular bacteriophage, is the adaptation phase always necessary?arrow_forwardList three possible uses of site-directed mutagenesisarrow_forwardThere are very different rules governing genome edited crops in the European Union and in the United States of America, according to Cohen. Explain why CRISPR-edited crops could be considered to be a type of GMO (per the EU) and why they could be considered equivalent to naturally occurring mutations (per the USA). In your explanation be sure to (1) discuss how CRISPR constructs are currently introduced into plants and (2) how all evidence of the CRISPR apparatus/process can be eliminated from the genome, leaving only the edited sequence(s).arrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY