Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 26.2, Problem 4COMQ
Summary Introduction
Introduction:
Proteins are the building blocks of the body, made by the
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Which of the following is NOT a way in which proto-oncogenes can change to become genes that induce cancer?
Group of answer choices
a. changes in a control element (enhancer) to increase transcription
b. gene amplification
c. changes in DNA sequence to produce a product that degrades rapidly
d. movement of the gene adjacent to a different control element to increase transcription
e. changes in DNA sequence to produce a product that is
Which of the following does not accurately describe eukaryotic transcriptional factors?
a. Changes in transcriptional factor express can lead to changes in development.
b. Most can regulate multiple different genes.
c. They are each specific to one gene.
d. Expression of different transcription factors leads to differentiation of cells.
Mutations in the ras gene family induce normal cells to proceed into the replication cycle. This converts the ras gene from a ________ gene to a ________ gene.
a. proto-oncogene; oncogene
b. oncogene; proto-oncogene
c. mutant; oncogene
d. tumor suppressor; proto-oncogene
Chapter 26 Solutions
Genetics: Analysis and Principles
Ch. 26.1 - Prob. 1COMQCh. 26.1 - Prob. 2COMQCh. 26.1 - Which of the following is the correct order for...Ch. 26.2 - Prob. 1COMQCh. 26.2 - Prob. 2COMQCh. 26.2 - Prob. 3COMQCh. 26.2 - Prob. 4COMQCh. 26.3 - Prob. 1COMQCh. 26.3 - Prob. 2COMQCh. 26.3 - 3. Myogenic bHLH proteins are ___________ that...
Ch. 26.4 - Prob. 1COMQCh. 26.4 - Prob. 2COMQCh. 26.5 - 1. A key event that initially determines female or...Ch. 26.5 - Prob. 2COMQCh. 26 - 1. What four types of cellular processes must...Ch. 26 - Prob. 2CONQCh. 26 - Prob. 3CONQCh. 26 - 4. Which of the following statement(s) is/are true...Ch. 26 - Discuss the morphological differences between the...Ch. 26 - Prob. 6CONQCh. 26 - Explain what a morphogen is, and describe how it...Ch. 26 - 8. What is positional information? Discuss three...Ch. 26 - Prob. 9CONQCh. 26 - Prob. 10CONQCh. 26 - 11. Describe the function of the Bicoid protein....Ch. 26 - With regard to development, what are the roles of...Ch. 26 - Discuss the role of homeotic genes in development....Ch. 26 - Describe the molecular features of the homeobox...Ch. 26 - What would you predict to be the phenotype of...Ch. 26 - Prob. 16CONQCh. 26 - If a mutation in a homeotic gene produced the...Ch. 26 - 18. Explain how loss-of-function mutations in the...Ch. 26 - What is the difference between a maternal-effect...Ch. 26 - Prob. 20CONQCh. 26 - Prob. 21CONQCh. 26 - Prob. 22CONQCh. 26 - 23. Discuss the similarities and differences...Ch. 26 - 24. What is cell differentiation? Discuss the role...Ch. 26 - Prob. 25CONQCh. 26 - What is a totipotent cell? In each of the...Ch. 26 - 27. What is a meristem? Explain the role of...Ch. 26 - Prob. 28CONQCh. 26 - Predict the phenotypic consequences of each of the...Ch. 26 - 30. Explain how alternative splicing affects sex...Ch. 26 - Prob. 1EQCh. 26 - Compare and contrast the experimental advantages...Ch. 26 - 3. What is meant by the term cell fate? What is a...Ch. 26 - 4. Explain why a cell lineage diagram is necessary...Ch. 26 - Explain the rationale behind the use of the bag of...Ch. 26 - Prob. 6EQCh. 26 - Take a look at question 2 in More Genetic TIPS...Ch. 26 - All of the homeotic genes inDrosophilahave been...Ch. 26 - Prob. 9EQCh. 26 - wo techniques commonly used to study the...Ch. 26 - Prob. 11EQCh. 26 - Prob. 12EQCh. 26 - 13. Another way to study the role of proteins...Ch. 26 - 14. Why have geneticists used reverse genetics to...Ch. 26 - Prob. 1QSDCCh. 26 - Prob. 2QSDCCh. 26 - Prob. 3QSDC
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- The underlying cause(s) of epigenetic changes associated withcancer may bea. mutations in genes that encode chromatin-modifyingproteins.b. environmental agents that alter the function of chromatinmodifyingproteins.c. mutations in genes that encode proteins that directly acceleratecell growth.d. all of the above.e. both a and b.arrow_forwardWhich of the following is NOT a description of an epigenetic modification? A. regulatory patterns that persisis in the absence of the original signal B. stable alterations in gene expression without changes to the underlying DNA sequence C. the persistence of gene expression patterns through cell division D. an intrinsic signal that triggers cell differentiationarrow_forwardWhich of the following is not an example of constitutively expressed gene? a. genes for cell division and growth b. genes involved in DNA repair c. genes for cellular respiration d. genes that function in ATP synthesisarrow_forward
- Epigenesis relating to genetics refers to which of the following A. Genetic information is limited to what we inherit only from our biological parents. B. Genes are not influenced by environmental factors. C. Genes we inherit are fully expressed at birth. D. Genes are turned on or off as needed, by the developing body or environmental triggers, across the life-spanarrow_forwardHow does gene activation lead to cell differentiation? Explain the correct answer and explain why the others are wrong. A. Different genes are activated in different cells, causing each cell to have a unique funcation B. The same genes are actives in every cell of your body, causing every cell to function the same C. Certain cells only have parts of DNA that causes cell deferentiation D. Unique genes are in different cells, causing each cell to have a unique functionarrow_forwardWhich of the following statements concerning p53 is NOT correct? O a. p53-dependent transcription of target genes leads to cell cycle arrest or cell death (apoptosis). O b. O C. Loss of p53 function results in loss of checkpoint controls. Loss of p53 function creates an environment that is permissive for genome instability--that is, more damaged cells with chromosome aberrations and mutations survive and propagate. d. p53 is a tumor suppressor protein which is largely responsible for protecting cells from cancer- causing DNA-damaging agents.arrow_forward
- Eukaryotic cells have multiple complex mechanisms for the regulation of gene expression, but a regulatory mechanism they rarely (if ever) use is a. operons. b. regulatory proteins. c. transcriptional factors. d. promoters.arrow_forwardWhich of the following accurately compares tumor suppressor genes and proto-oncogenes? A. Both tumor suppressor and proto-oncogenes prevent the spread of cancer by targeting and destroying existing cancer cells. B. A person who has both tumor suppressor and proto-oncogenes will always develop cancer. C. Proto-oncogenes code for growth factors, while tumor suppressor genes inhibit cell division of damaged cells. D. When a proto-oncogene mutates, it becomes a tumor suppressor gene.arrow_forwardthere 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_forward
- Which of the following demonstrates the link between oncogenes and cancer? a.Oncogenes do not have mutations that increase the activity or number of molecules that stimulate mitosis. b.Oncogenes produce molecules that inhibit mitosis. c.They are genes that transform tumor cells into normal cells. d.The mutations in oncogenes increase the activity or number of molecules that stimulate mitosis, leading to irregular cell division.arrow_forwardWhich of the following statements about cancer is correct? A. Cancer stem cells can make tumors resistant to chemotherapy. B. Intra-tumoral heterogeneity makes it easier to treat cancer. C. Mutation in p53 is a type of passenger mutation. D. One driver mutation is more than sufficient for the production of a cancer phenotype.arrow_forwardAt birth a child has got blue eyes, but now his/her eyes turn brown. Which of the following statements would best explain the observed phenomena? A. The child does not have brown pigment at birth B. Eye’s colour at birth is affected by mother’s gene C. Gene repressor for brown pigment produced is not yet active D. Gene activatior for brown pigment production is not yet active at birth E. All of the above statements are falsearrow_forward
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