CAMPBELL BIOLOGY (18W)
12th Edition
ISBN: 9780136858256
Author: Urry
Publisher: PEARSON
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Chapter 17.5, Problem 4CC
Summary Introduction
To analyze: How to use the CRISPR-Cas9 system to correct the mutation if is it worth doing.
Introduction: DNA (Deoxyribonucleic acid) is considered the main genetic material which carries genetic information in the form of genes which are the
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What would a scientist need to use CRISPR-Cas system to introduce a specific point mutation into a gene?
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Chapter 17 Solutions
CAMPBELL BIOLOGY (18W)
Ch. 17.1 - Prob. 1CCCh. 17.1 - What polypeptide product would you expect from a...Ch. 17.1 - Prob. 3CCCh. 17.2 - MAKE CONNECTIONS In a research artide about...Ch. 17.2 - What enables RNA polymerase to start transcribing...Ch. 17.2 - WHAT IF? Suppose X-rays caused a sequence change...Ch. 17.3 - There are about 20,000 human protein-coding genes....Ch. 17.3 - How is RNA splicing similar to how you would watch...Ch. 17.3 - Prob. 3CCCh. 17.4 - What two processes ensure that the correct amino...
Ch. 17.4 - Prob. 2CCCh. 17.4 - Prob. 3CCCh. 17.4 - WH AT IF? In eukaryotic cells, mRNAs have been...Ch. 17.5 - What happens when one nucleotide pair is lost from...Ch. 17.5 - MAKE CONNECTIONS Individuals heterozygous for the...Ch. 17.5 - WHAT IF? DRAW IT The template strand of a gene...Ch. 17.5 - Prob. 4CCCh. 17 - Describe the process of gene expression, by which...Ch. 17 - What are the similarities and differences in the...Ch. 17 - What function do the 5' cap and the poly-A tail...Ch. 17 - Prob. 17.4CRCh. 17 - What will be the results of chemically modifying...Ch. 17 - In eukaryotic cells, transcription cannot begin...Ch. 17 - Prob. 2TYUCh. 17 - The anticodon of a particular tRNA molecule is (A)...Ch. 17 - Prob. 4TYUCh. 17 - Which component is not directly involved in...Ch. 17 - Using Figure 17.6, identify a 5' 3' sequence of...Ch. 17 - Prob. 7TYUCh. 17 - Would the coupling of the processes shown in...Ch. 17 - Prob. 9TYUCh. 17 - Prob. 10TYUCh. 17 - scientific inquiry Knowing that the genetic code...Ch. 17 - Prob. 12TYUCh. 17 - Prob. 13TYU
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- CRISPR-Cas9 was first developed as a molecular tool in 2012; during the next few years, its use in molecular biology exploded, as scientists around the world began applying it to many different research problems, and hundreds of research papers describing its application were published. Explain why CRISPR-Cas is such a powerful tool in molecular genetics.arrow_forwardA number of advances have been made in biotechnology. CRISPR/Cas9 one of the most controversial, and has had a lot of media attention in recent years. It is a method by which scientists can precisely edit DNA sequences at exact locations. Benefits obviously include the potential to “repair” mutated genes that cause disease. In fact, preliminary results from one of the earliest clinical trials of CRISPR/Cas9 provide evidence that the technique is safe and feasible to use for treating human diseases. What other potential applications of this application do you see (you can use any organisms to illustrate your answer)? What are the potential dangers or downsides of using this technology? Do you think this technology should be used in gene editing in humans? Explain your stance.arrow_forward1. Why would multi-gene families complicate things in terms of being sure of which member of the family was responsible for a particular phenotype? 2. How could multi-genes families complicate things in terms of using CRISPR to knock out a target gene and achieve a target phenotype?arrow_forward
- 10) Scientists have engineered a simplified CRISPR-cas system for use in mammalian cells. What were the TWO main modifications that were made to the bacterial system?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_forwardOO HUAWEI nova 2 Plus DUAL CAMERA In bacteria, which of the following is/are considered as a mechanism of defense against bacteriophage infection? O a. Indigo dye O b. Xanthan gum О с. Restriction enzyme d. Ascorbic acid e. Amino acids If you are interested to clone your gene of interest to produce a product for commercial use you will use start material for your cloning. as a O a. Gênomic DNA O b. Complementary DNA O C. mRNA O d. Plasmid DNA and CDNA e. Plasmid DNA NEXT PE E PAGEarrow_forward
- Now you have the gene sequence. Now you would like to clone it into an expression vector to grow up in a bacterial system. Because you're going to use bacteria to generate protein from a eukaryote, the mammoth, you need to get rid of introns from your sequence. How do you do that? Bioinformatically, I look for splice-site sequences and branch-point adenines and predict intron-exon boundaries I use a comparative genomic approach and use sequence homology with the genome of a closely related species I use a comparative genomic approach and use sequence homology with the genome of a distantly related species Both A and B Both B and C Why did you bother to identify the introns? So that I could include them in the sequence to understand intron function. So that I could exclude them from the sequence because prokaryotes don't have spliceosomal machinery. So that I could see how introns affect protein folding.arrow_forwardGenome annotation refers to ... 1.) lining up overlapping regions in short shotgun sequencing reads to assemble larger contiguous DNA sequences (contigs/scaffolds). 2.) using long-read sequencing platforms (such as PacBio or Oxford Nanopore) to gather information about the epigenetic status of each region of a sequenced genome. 3.) the process of predicting which parts of a genome sequence code for functional products (such as protein-coding genes), what those products do, and assigning them names. 4.) sequencing messengeRNA measure the relative expression levels of genes in one or more tissue samples.arrow_forwardBesides the great potential of gene editing, what are the biggest risks?  How do scientist test to ensure their gene editing experiments target only the desired specific genes?arrow_forward
- Bacteriophage lambda is as one of the routinely used molecular cloning vectors, which alsoserved as a model system for the study of bacteriophage morphogenesis, DNA replication, andgene regulation. (a)Blunt-end cloning is proven to be more challenging, compared to sticky-end cloning.Illustrate ONE (1) approach that can be conducted in order to perform blunt-end cloning ofa PCR product to a plasmid vector.d) Evaluate the advantages of mRNA as a source material for generating DNA fragments, inrelation to gene cloning.e) E. coli, in most cases is not a suitable host for cloning genes from eukaryotes. Discuss thisstatement.arrow_forwardQuestion:- What is genetic engineering? What organisms can it be performed on? Please give an example of at least one successful genetic engineering project. Where was CRISPR/Cas9 initially found? What was its purpose in that organism?arrow_forwardConsider the following human genetic diseases: hemophilia, Down syndrome, cystic fibrosis, and brain cancer. Which are the best candidates for treatment with CRISPR-Cas genome editing, and which have the largest hurdles to overcome? Why?arrow_forward
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