Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 19, Problem 6A
What would be the likely result of a mutation of the bcl-2 gene on the level of apoptosis
a. No change
b. A decrease in apoptosis
c. An increase in apoptosis
d. An initial decrease, followed by an increase in apoptosis
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Chapter 19 Solutions
Biology
Ch. 19 - During development, cells become a. differentiated...Ch. 19 - Prob. 2UCh. 19 - Prob. 3UCh. 19 - Prob. 4UCh. 19 - Plant meristems a. are only present during...Ch. 19 - Prob. 6UCh. 19 - The process of nuclear reprogramming a. is a...Ch. 19 - What is the common theme in cell determination by...Ch. 19 - The process of reproductive cloning a. shows that...Ch. 19 - Prob. 3A
Ch. 19 - Prob. 4ACh. 19 - The genes that encode the morphogen gradients in...Ch. 19 - What would be the likely result of a mutation of...Ch. 19 - MADS-box, and Hox genes are a. found only in...Ch. 19 - The fate map for C. elegans (refer to figure 19.3)...Ch. 19 - Prob. 2SCh. 19 - You have generated a set of mutant embryonic mouse...Ch. 19 - Assume you have the factors in hand necessary to...
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- What is apoptosis? a. A chemical that damages neurons b. A chemical that keeps neurons alive c. A programmed mechanism of cell death d. A machine that records neuron activityarrow_forwardA scientist notices that a cancer cell line fails to die when he adds an inducer of apoptosis to his culture of cells. Which hypothesis could explain why the cells fail to die? a. The cells have a mutation that prevents the initiation of apoptosis signaling. b. The cells have lost expression of the receptor for the apoptosis-inducing ligand. c. The cells overexpress a growth factor pathway that inhibits apoptosis. d. All of the above.arrow_forwardThis begins early in the telophase and continues after the nucleus has formed in the daughter cells. a. cytokinesis b. interphase c. apoptosis d. differentiationarrow_forward
- The majority of the cells undergo selective activation of the DNA which would lead to cells developing specialized structures and specialized features, a process known as a. differentiation b. apoptosis c. cell division d. cytokinesisarrow_forwardDescribe two functions of apoptosis.arrow_forwardWhat is the role of executioner proteins in apoptosis?a. They kill the cell by destroying its proteins.b. They function as the “death receptors” on the surface of the cell.c. They are part of the immune response that eliminates the cells.d. They cause the cell to swell and burst.arrow_forward
- In typical women of reproductive age, the epithelial cells lining the uterus (the endometrium) die and are shed from the body roughly once every month, in the process of menstruation. The triggers in this process include chemical (hormonal) changes and contraction of the blood vessels in the lining. Cell death may be a result of either apoptosis or necrosis. a. Describe the characteristics of each process (apoptosis and necrosis). b.Develop an argument for classifying the process of menstruation as an example of apoptosis, and then argue for classifying it as necrosis. c.Explain which is correct, and provide the supporting evidence?arrow_forwardApoptosis involves all but which of the following?(A) fragmentation of the DNA(B) cell-signaling pathways(C) lysis of the cell(D) digestion of cellular contents by scavenger cellsarrow_forwardWhich of the following factors contributes to angiogenesis as a result of a tumor growth? Select all that apply: a. Increasing tumor's access to oxygen and nutrients b. Increasing tumor's ability for growth, invasion, and metastasis c. Increasing expression of proto-oncogenes for cancer cells d. Increasing expression of tumor-suppressor genes for cancer cellsarrow_forward
- How does the Apoptosis Through Death Receptors pathway work, where it works and why it works. Include a diagram of the steps.arrow_forwardMitogens tend to ___________ Select one: a. suppress cell division b. promote cell division c. suppress protein synthesis d. promote protein degradation e. promote apoptosisarrow_forwardDuring apoptosis, rates of protein degradation ______ caused by _____ protease activity. Select one: a. increase, increase b. increase, decrease c. decrease, decrease d. decrease, increasearrow_forward
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