Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 23, Problem 4EQ
The cells from a person’s malignant tumor were subjected to in situ hybridization using a probe that recognizes a unique sequence on chromosome 14. The probe was detected only once in each of the cells. Explain this result, and speculate on its significance with regard to the malignant characteristics of these cells.
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Chapter 23 Solutions
Genetics: Analysis and Principles
Ch. 23.1 - Prob. 1COMQCh. 23.2 - Prob. 1COMQCh. 23.3 - A molecular marker is a _____ found at a specific...Ch. 23.3 - 2. Which of the following is an example of a...Ch. 23.3 - To map the distance between molecular markers via...Ch. 23.4 - 1. What is a contig?
a. A fragment of DNA that...Ch. 23.4 - A vector that can carry a large fragment of...Ch. 23.4 - 3. Chromosomal walking is a method of _____ in...Ch. 23.5 - Prob. 1COMQCh. 23.5 - Prob. 2COMQ
Ch. 23.5 - 3. A prokaryotic genome is about 4 million bp in...Ch. 23.6 - Metagenomics is aimed at a. determining the...Ch. 23 - 1. A person with a rare genetic disease has a...Ch. 23 - For each of the following, decide if it could be...Ch. 23 - Which of the following statements about molecular...Ch. 23 - 1. Is each of the following a method used in...Ch. 23 - Prob. 2EQCh. 23 - Prob. 3EQCh. 23 - The cells from a persons malignant tumor were...Ch. 23 - 5. Figure 23.2 describes the technique of FISH....Ch. 23 - Explain how DNA probes with different fluorescence...Ch. 23 - 7. A researcher is interested in a gene found on...Ch. 23 - Prob. 8EQCh. 23 - Prob. 9EQCh. 23 - Prob. 10EQCh. 23 - Prob. 11EQCh. 23 - Prob. 12EQCh. 23 - In the Human Genome Project, researchers have...Ch. 23 - 14. Take a look at question 3 in More Genetic...Ch. 23 - 15. Place the following stages of a physical...Ch. 23 - 16. What is an STS? How are STSs generated...Ch. 23 - 17. Four cosmid clones, which we will call cosmids...Ch. 23 - A human gene, which we will call geneX, is located...Ch. 23 - 19. Describe how you would clone a gene by...Ch. 23 - 20. A bacterium has a genome size of 4.4 Mb. If a...Ch. 23 - 21. Discuss the advantages of next-generation...Ch. 23 - Prob. 22EQCh. 23 - Prob. 23EQCh. 23 - What is a molecular marker? Give two examples....Ch. 23 - Which goals of the Human Genome Project do you...
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- "While other proteins come and go during the cell cycle, the proteins of the origin recognition complex remain bound to the DNA throughout" is true or false.arrow_forwardThe figure below summarizes the results of an experiment evaluating the role of Ku80 gene DNA repair. The Ku80 Knock Out mice were generated by genetically deleting the Ku80 gene and the effects of ionizing radiation on lifespan were evaluated. Briefly explain why Ku80 deletion has the observed effects. What form of DNA damage is causing the reduced lifespan and which repair mechanism appears to be responsible for repair of these lesion in normal mice?arrow_forwardA person with a rare genetic disease has a sample of her chromosomessubjected to in situ hybridization using a probe that is known to recognize band p11 on chromosome 7. Even though her chromosomes look cytologically normal, the probe does not bind to this person’s chromosomes. How would you explain these results? How would you use this information to positionally clone the gene that is related to this disease?arrow_forward
- Knockout mice are mice in which a functional gene or a group of functional genes are rendered nonfunctional by a special technique involving homologous recombination. Predict what happen to knockout mice which have their RAG-1 and RAG-2 genes “removed".arrow_forwardYou are an expert in DNA-repair mechanisms. You receive a sample of a human cell line derived from a woman who has symptoms of xeroderma pigmentosum. You determine that she has a mutation in a gene that has not been previously associated with XP. How is this possible?arrow_forwardWith the use of well-illustrated diagrams, reconstruct the entire cloning process by explaining different stages of the cloning process that involves the following:a. Isolation of target DNA fragments (often referred to as inserts)b. Ligation of inserts into the plasmid, creating recombinant molecules c. Transformation of recombinant plasmids into bacteria or other suitable host for propagationd. Screening/selection of hosts containing the intended recombinant plasmid. For this stage(d), discuss the importance of a second marker that can be used for screening of genomic DNA for colonies containing the pka-1 under the principle of insertional inactivation. This should be properly explained using all the attributes of the plasmid described above.arrow_forward
- With the use of well-illustrated diagrams, reconstruct the entire cloning process by explaining different stages of the cloning process that involves the following: d. Screening/selection of hosts containing the intended recombinant plasmid. For this stage(d), discuss the importance of a second marker that can be used for screening of genomic DNA for colonies containing the pka-1 under the principle of insertional inactivation. This should be properly explained using all the attributes of the plasmid described above.arrow_forwardWhy would a mutation in a somatic cell of a multicellular organism not necessarily result in a detectable phenotype?arrow_forwardUsing a flow diagram, elaborate on how you would generate a recombinant plasmid that can be used for the expression of a therapeutic insulin.arrow_forward
- Why is DNA microarray an important tool and explain How is DNA microarray used in detecting cancer?arrow_forwardWhen doing the virtual DNA microarray analysis, which color (red, green or yellow) would the spot be if that gene was inappropriately inactivated in the cancer cell? When doing the virtual DNA microarray analysis, which color (red, green or yellow) indicated that the cancer cell had an activated a gene that is not normally as active in the non-cancerous version of the cell?arrow_forwardA technique called fluorescence in situ hybridization (FISH) is described. In this method, a labeled piece of DNA is hybridized to a set of chromosomes. Let’s suppose that you cloned a piece of DNA from G. pubescens and used it as a labeled probe for in situ hybridization. What would you expect to happen if this DNA probe were hybridized to the G. speciosa or G. tetrahit chromosomes? Describe the expected results.arrow_forward
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