BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 19, Problem 1A
What is the common theme in cell determination by induction or cytoplasmic determinants?
a. The activation of transcription factors
b. The activation of cell division
c. A change in gene expression
d. Both a and c are correct.
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What is a primary function of tumor suppressor genes?a. stop all cells from dividingb. stop certain cells from dividingc. help oncogenes produce oncoproteinsd. allow the cell to skip certain phases of the cellcycle
How 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
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Chapter 19 Solutions
BIOLOGY
Ch. 19.1 - Prob. 1LOCh. 19.2 - Prob. 1LOCh. 19.2 - Prob. 2LOCh. 19.2 - Distinguish differences in cell division between...Ch. 19.3 - Prob. 1LOCh. 19.3 - Prob. 2LOCh. 19.3 - Prob. 3LOCh. 19.4 - Prob. 1LOCh. 19.4 - Prob. 2LOCh. 19.5 - Prob. 1LO
Ch. 19.5 - Describe D/V axis formation in Drosophila.Ch. 19.6 - Prob. 1LOCh. 19.6 - Prob. 2LOCh. 19.6 - Prob. 3LOCh. 19.7 - Prob. 1LOCh. 19.7 - Prob. 2LOCh. 19.7 - Prob. 3LOCh. 19 - What type of cells would develop if you injected...Ch. 19 - The sheep used for the donor nucleus had a...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. 3ACh. 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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- How does MPF trigger M phase of the cell cycle? A. MPF phosphorylates proteins that triggers the activation of M phase B. MPF has a regulatory role in breakdown of the nuclear envelope during M phase C. MPF is a dimer subunit that is turned on during S phase to aid with chromosome replication D. MPF Cdk subunits regulate M phasearrow_forwardThe process involving signals being sent between a cell interacting with one or more cells close by, to change the fate of the cell, or help in determining its final form is called A. activation B. Morphogenesis C. Induction D. repressorsarrow_forwardTumors involve a malfunction in this cellular process. a. transcription b. translation c. phagocytosis d. mitosisarrow_forward
- Why would the failure of the p53 tumor supressor gene be more likely to cause cancer in a seventy year old person compared to a ten year old person? Group of answer choices A. the p53 gene never works well in old people B. cells divide more rapidly as people get older C.The seventy year old is more likely to have pre-existing failures in cell cycle control D. there are fewer mutations in genes controlling the cell cycle in older peoplearrow_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_forwardWhich negative regulatory molecule can trigger cell suicide (apoptosis) if vital cell cycle events do not occur? a. p53 b. p21 c. retinoblastoma protein (Rb) d. cyclin-dependent kinase (Cdk)arrow_forward
- What would be the effect on the cell cycle of a drug that inhibited each of the following? a. MPF b. Cyclin-E–CDK c. Cyclin-D–CDKarrow_forwardWhich of these is a characteristic of cancer cells? a. They do not exhibit contact inhibition. b. They lack specialization. c. They have abnormal chromosomes. d. They fail to undergo apoptosis. e. All of these are correct.arrow_forwardThe 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_forward
- At what stage in mitosis do the sister chromatids line up along the midline of the cell? a. Metaphase b. Anaphase c. Telophase d. Prophasearrow_forwardWhich of the following would be expressed at varying levels during different parts of the cell cycle? A. cyclin-dependent kinases B. RNA polymerase C. cyclins D. Glycolysis enzymesarrow_forwardGive two examples of events that can regulate the cell cycle externally.arrow_forward
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cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license