Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 24TYK
Which of the following would most likely account for a family history of colorectal cancer?
- a. a diet that is high in fats and fiber
- b. inheritance of one mutated APC allele that regulates cell adhesion and migration
- c. inheritance of the ras oncogene, which locks the G protein in an active configuration
- d. inheritance of a proto-oncogene
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Chapter 18 Solutions
Study Guide for Campbell Biology
Ch. 18 - In the following diagram of the lac operon, an...Ch. 18 - a. Repressible enzymes usually function in _____...Ch. 18 - a. Give an example of highly methylated and...Ch. 18 - Label the components of the following diagram that...Ch. 18 - a. How is the process of alternate RNA splicing...Ch. 18 - a. Describe how miRNAs regulate gene expression....Ch. 18 - a. What is the difference between determination...Ch. 18 - What type of evidence established that Bicoid...Ch. 18 - a. List three genetic changes that can convert a...Ch. 18 - Complete the following concept map to help you...
Ch. 18 - Fill in the following table to help you organize...Ch. 18 - Prob. 3SYKCh. 18 - Prob. 1TYKCh. 18 - Prob. 2TYKCh. 18 - Prob. 3TYKCh. 18 - Prob. 4TYKCh. 18 - Prob. 5TYKCh. 18 - DNA methylation of cytosine bases a. initiates the...Ch. 18 - Which of the following is not true of enhancers?...Ch. 18 - Prob. 8TYKCh. 18 - A eukaryotic gene typically has all of the...Ch. 18 - Prob. 10TYKCh. 18 - Prob. 11TYKCh. 18 - Which of the following statements explains why a...Ch. 18 - Prob. 13TYKCh. 18 - Prob. 14TYKCh. 18 - Prob. 15TYKCh. 18 - Prob. 16TYKCh. 18 - What would be the fate of a Drosophila larva that...Ch. 18 - Prob. 18TYKCh. 18 - Prob. 19TYKCh. 18 - Prob. 20TYKCh. 18 - Prob. 21TYKCh. 18 - Prob. 22TYKCh. 18 - Prob. 23TYKCh. 18 - Which of the following would most likely account...
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- Which ONE of the following genetic patterns defines a patient with acute myeloid leukaemia with the most favourable prognosis? Select one: A.Deletion of chromosome 5 B.Normal karyotype with FLT3 tyrosine kinase domain mutation C.t(8;21) translocation D.Deletion of chromosome 7arrow_forwardIntitial analysis of a human colon cancer tumor indicates mutations/defects in APC, B-Raf and p53. Which of the genes below is also most likely mutated in this tumor (select one)? A. Beta-catenin B. K-RAS C. SMAD4 D. MDM2 E. p14 ARFarrow_forwardIn tumor cells obtained from patients with Burkittlymphoma, a cancer of the immune system’s B cells,the myc gene often appears close to one of the breakpoints of a reciprocal translocation between chromosomes 8 and 14. In this translocated position, myc is expressed at a higher-than-normal level. Scientists hypothesize that Myc protein overexpression in B cellscontributes to lymphoma formation.a. Explain how transgenic mice produced using pronuclear injection could be used to test this hypothesis. (Assume that you previously cloned a generegulatory region that is active specifically in Bcells throughout the life of the mouse.)b. Suppose you wanted to overexpress Myc only inthe immune cells of mice, starting at one week ofage. To restrict Myc transcription spatially, youwill use same promoter described in part (a). Torestrict Myc transcription temporally, you will usea cre transgene whose expression is controlled byheat shock (hs-cre). Describe the mouse you wouldcreate to accomplish…arrow_forward
- What is the difference between a proto-oncogene and an oncogene? a. oncogenes cause benign tumors (polyps), proto-oncogenes cause malignant tumors b. oncogenes transform cells to hyperproliferation, proto-oncogenes have a normal cellular role c. oncogenes have undergone post-translational modification, proto-oncogenes have not d. oncogenes have undergone intron splicing, proto-oncogenes have notarrow_forward5) Briefly explain why the formation of a tumour can pose a risk to a person's homeostasis. 6) The functioning of the "Ras/MAPK" signal transduction pathway is absolutely essential in order for cells to grow, divide, and migrate. One important protein that is part of this pathway is BRAF. This protein is a kind of enzyme called a "kinase" – an enzyme that transfers a phosphate group onto another protein. In some melanomas, a mutated form of BRAF called BRAF Val600AGlu drives the progression of the cancer. The drug "vemurafenib" slows the progression of the cancer by slowing the production of the mutant BRAF protein. (National Cancer Institute. 2019. Types of Cancer Treatment. Retrieved from: https://www.cancer.gov/about-cancer/treatment/types/ Is this an example of a traditional cancer therapy or a targeted therapy? Briefly explain your reasoning in the space provided, using information provided in the text to support your answer. Type of therapy (traditional or targeted)?: Brief…arrow_forwardThe p53 protein was discovered through its association with SV40 T antigen and assumed initially to be an oncoprotein. a. What is the current consensus as the function of p53 and what evidence caused this change in view? b. How does the effect of mutation in the p53 gene differ from the effect of mutation in the RB gene what is the molecular basis for this difference ?arrow_forward
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