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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Hox genes encode transcription factors that
a. control segmentation.
b. promote determination.
c. cause cell differentiation.
d. do all of the above.
Which of the following best describes a gene that codes for a tumor-suppressor protein?
a. One that helps to prevent progression through the cell cycle.
b. One that helps prevent apoptosis.
c. One that codes for a DNA repair enzyme.
d. One that supports part of a growth factor signaling pathway.
In a wild-type cell, the function of a protein encoded by a tumor-suppressor gene is to cause a cell to ______.
A.) stop dividing
B.)extend its telomeres
C.) grow toward a new blood vessel
D.) respond to a growth factor
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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- What is the phenotype of the gnom mutant? A. Loss of cell fate B. Lack of cell-cell communication C. loss of embryo polarity D. Failure of cell differentiationarrow_forwardWhich of the following statements correctly describes a characteristic of tumor-suppressor gene? a) they are frequently overexpressed in cancerous cells. b) they are cancer-causing genes introduced into cells by viruses. c) they encode proteins that help prevent uncontrolled cell growth. d) they often encode proteins that stimulate the cell cycle.arrow_forwardTranscription factors such as myoD control gene expression in which of the following ways? Group of answer choices A. direct control of transcription of specific genes B. control of the cell cycle C. general control of transcription through chromatin modification D. control of RNA splicing E. control of translationarrow_forward
- The term differentiation refers to (a) the loss of genes from cells. (b) the acquisition of new functional capabilities by cells. (c) the production of functionally specialized cells. (d) the division of genes among different types of cells.arrow_forwardRegulation of gene expression is necessary because: A) all cells do not need to express all genes B) all genes must be expressed in all cells C) some cells express all genes D) some genes must be expressed in all cellsarrow_forwarda) What is a gene promoter? b) What proteins bind to a promoter? c) What do those proteins do to control gene expression?arrow_forward
- What 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_forwardWhich of the following mutations is MOST likely to cause cancer? A) a mutation that causes a cyclin gene to be expressed at all times during the cell cycle B) a mutation that causes an oncogene to be turned off so that no protein is made C) a mutation that causes a Cdk gene to be turned off so that no protein is made D) a mutation that causes a tumor suppressor gene to be over-expressedarrow_forwardA. Which genes could be used to monitor the process of the disease? B.  If you worked for a drug company developing a treatment for the cancer, which genes would you target to turn on in cancer cells? C. Which genes would you target to turn off in cancer cells?arrow_forward
- Why is it easier to manipulate embryonic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell? a. As cells develop, signaling pathways can cause some genes to be turned off during development. b. Adult cells have different DNA content than do embryonic stem cells. c. Emybronic stem cells pose less of a threat for organ rejection as do an individual s own adult cells. d. It is no easier to manipulate emybronic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell.arrow_forwardTranscription factors such as myoD control gene expression in which of the following ways? Group of answer choices ONLY ONE RIGHT ANSWERZ: A. direct control of transcription of specific genes B. control of the cell cycle C. general control of transcription through chromatin modification D. control of RNA splicing E. control of translationarrow_forwardWhy do stem cells that have been damaged prefer apoptosis over repairing the genome? a. Stem cells cannot repair the damaged genome b. The repair machinery is not perfect and therefore prone to make mistakes c. They don't d. None of the abovearrow_forward
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