Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 17, Problem 1U
You study a gene known to be important in the early stages of heart development. Loss of the gene is also suspected to play a role in triggering lung cancer. What kind of transgenic mouse would you use to study your gene in vivo?
a. Knockout
b. Knockin
c. Conditional knockout
d. All of the choices are correct.
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Students have asked these similar questions
1a) Why is it possible for you to study the eye colour gene by extracting cheek cells?
a. Because the nucleus of every cell in the human body contains the same genetic information.
b. Because the cheek cells are located near the cells of the eye and so they are able to exchange DNA.
c. Because all genes in the human body are expressed at all times so it is easy to study them.
d. All of the above are possible explanations.
1b) What is the purpose of heating the sample to 75°C following addition of the 0.2M NaOH solution?
a. To denature the histone proteins that are keeping the DNA tightly coiled.
b. To ensure that all the DNA is removed from the swab in preparation for PCR.
c. To breakdown the cheek cell membrane to release the DNA from the cell.
d. It breaks down the circular DNA down into linear fragments so that they will be easier to visualize.i
What strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging of only one cell type in an acute slice of the brain?
A.The use of fluorescent protein expression inhibitors in other cells
B.The injection of a recombinant virus causing the death of other cells
C.The use of a promoter specific to these cells
D.Activation of membrane receptors specific to these cells
You are studying celiacs disease and have identified a
potential gene for the disease using linkage analysis.
You decide to test your hypothesis by making
transgenic mice that carry a nonsense mutation in the
candidate gene you have identified to see if they
develop a phenotype similar to that found in Celiacs
disease
What sort or experimental approach are you using
when you test your gene in your mouse model?
a. Reverse genetic
b. Quantitative genetic
C. Forward genetic
D.Expression analysis
E. None of the above
Chapter 17 Solutions
Biology
Ch. 17.1 - Prob. 1LOCh. 17.1 - Prob. 2LOCh. 17.1 - Describe the construction and uses of recombinant...Ch. 17.2 - Relate the process of DNA replication to PCR.Ch. 17.2 - Compare and contrast PCR, RT-PCR, and quantitative...Ch. 17.3 - Prob. 1LOCh. 17.3 - Prob. 2LOCh. 17.3 - Describe the pros and cons of RNA interference and...Ch. 17.4 - Explain how the universal nature of the genetic...Ch. 17.4 - Compare and contrast knockout, knockin, and...
Ch. 17.4 - Prob. 3LOCh. 17.5 - Describe the benefits of biofuel production from...Ch. 17.5 - Prob. 2LOCh. 17.5 - Prob. 3LOCh. 17.6 - Prob. 1LOCh. 17.6 - Compare and contrast FISH and gene chip...Ch. 17.6 - Describe how immunoassays can be used to diagnose...Ch. 17.7 - Describe the benefits of creating transgenic...Ch. 17.7 - Prob. 2LOCh. 17.7 - Evaluate issues on each side of the transgenic...Ch. 17 - Prob. 1DACh. 17 - Prob. 2DACh. 17 - Prob. 1IQCh. 17 - Prob. 2IQCh. 17 - You study a gene known to be important in the...Ch. 17 - What is the basis of separation of different DNA...Ch. 17 - Prob. 3UCh. 17 - FISH analysis of a breast tumor biopsy for HER2...Ch. 17 - In terms of studying gene function, what is the...Ch. 17 - The Ti plasmid of Agrobacterium usually induces...Ch. 17 - Prob. 1ACh. 17 - Which of the following statements is accurate for...Ch. 17 - Prob. 3ACh. 17 - Many human proteins, such as hemoglobin, are only...Ch. 17 - Amyloid beta is a proteolytic product of a protein...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You are studying pancreatic cancer have matched samples of tumor and healthy pancreatic tissue. You use a microarray to determine gene expression differences between these two sample. You label the healthy tissue cDNA with red fluorescnce and the tumor cDNA with green. You apply these cDNAs to your chip. Beta-actin is a housekeeping gene required for cell structure. What color would you expect the spot for this gene to be? a. Red b. Green c. Yellow d. No color e. None of the abovearrow_forwardWhat is the advantage of using the neo gene to disrupt the function of a gene in knockout mice? a. The neo gene produces an antibiotic that kills unwanted cells. b. The neo gene is the right size for disabling other genes. c. The neo gene provides a selectable marker for finding cells that contain the disabled gene. d. The neo gene produces a toxin that inhibits transcription of the target genearrow_forwardGene expression array technology has been used to do which of the following (select all that apply)? A. Determine liklihood of metastasis B. Determine the most relevant treatment for individual patients based on their genomic “signature.” C. Determine therapeutic index of cancer drug D. Predict the likelihood of disease recurrence in individuals based on gene expression signatures E. Stratify patients with breast cancer into groups predictive of response to therapyarrow_forward
- Using CRISPR/Cas9 to target a gene in the mouse will primarily result in: a. Any of the choices b. Synonymous substitutions C. Homozygous gene knockouts d. Missense mutations e. Frameshift mutationsarrow_forwardOn the image, you can see the results of a DNA microarray used for cancer prognosis, where tissue samples from healthy and cancerous tissues were analyzed. cDNA from healthy cells and cancer cells were labeled with green and red fluorescence, respectively, mixed equally, and hybridized with the chip. It is known that gene A is more highly expressed in breast cancer type I, while genes B and C have lower expression in type II, which is highly aggressive. Based on the gene expression levels shown in the image, the cancer sample does not correspond to either type I or type II breast cancer, why is that?arrow_forwardA. In what year was the National Bioethics Advisory Council formed? B. The first mammal clone to be produced from an adult (somatic cell)?arrow_forward
- there is the statement: "Both stem cells and specialized cells have all the same genes. They differ in the regulation of those genes and express very different sets of genes ". Which one of the following explanations best accounts for this difference in stem cell and specialized cell gene expression? A. Stem cells and specialized cells have different activators and repressors that affect transcription B. Stem cells and specialized cells have different promoter sequences for their genes, thus affecting transcription C. Stem cells and specialized cells have different ribosomes that affect translation D. Stem cells and specialized cells use different start codons on mRNAs, thus affecting translationarrow_forwardWhich of these statements is correct regarding the CRISPR/Cas9 system in eukaryotic cells? a.Single guide RNA (sgRNA) is used to target specific DNA sequences and activate Cas. b.Bacteriophages are used to inject viral genes into the cell to activated the Cas protein. c.CRISPR takes advantage of the cell’s DNA polymerase proof-reading activities for DNA replication errors d.The CRISPR-Cas system can only be used to alter genomes in prokaryotic cells. e.Cas cuts directly into palindromic restriction sites that it targets in the DNA.arrow_forwardWhich of these statements is correct regarding the CRISPR/Cas9 system in eukaryotic cells? A.Single guide RNA (sgRNA) is used to target specific DNA sequences and activate Cas. B.Bacteriophages are used to inject viral genes into the cell to activated the Cas protein. C.CRISPR takes advantage of the cell’s DNA polymerase proof-reading activities for DNA replication errors D.The CRISPR-Cas system can only be used to alter genomes in prokaryotic cells. E. Cas cuts directly into palindromic restriction sites that it targets in the DNA.arrow_forward
- When using gene therapy to treat an hereditary disease, the idea is to: A. Introduce the correct gene into the patient's DNA B. Inject the patient with a specific protein to cure the disease. C. Blood transfusions from healthy individuals. D. ntroduce mRNA molecules with the correct genetic information to the patient. E. Introduce a virus to the patient that will specifically destroy mutated cells.arrow_forwardIt has been suggested that it would make the study of human diseases easier if cloned transgenic animals were produced that carried faulty versions of human genes (e.g., the gene that causes cystic fibrosis). a. Why would such animals be useful in medical research? : b. What ethical questions are raised by the creation of such transgenic animals?arrow_forwardThe goal of most gene therapies is to insert a healthy copy of a gene into the genome. Besides CRISPR, techniques for integrating DNA into the genome do not target that DNA to a particular genomic location and thus different cells end up with the DNA sequence in different positions. B. The same gene integrated into different locations in the genome will be expressed differently. Why?arrow_forward
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