Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Textbook Question
Chapter 10, Problem 1SQ
Gene expression does not vary by ___ .
- a. cell type
- b. extracellular conditions
- c. stage of development
- d. the genetic rode
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Gene expression does not vary by_______ . a. cell type c. stage of development b. extracellular conditions d. the genetic code
Hox genes encode transcription factors that
a. control segmentation.
b. promote determination.
c. cause cell differentiation.
d. do all of the above.
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.
Chapter 10 Solutions
Biology: The Unity and Diversity of Life
Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Gene expression does not vary by ___ . a. cell...Ch. 10 - Binding or ___ to ___ in DNA can increase the rate...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 4SQCh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Prob. 6SQCh. 10 - Prob. 7SQ
Ch. 10 - Prob. 8SQCh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SQCh. 10 - Prob. 11SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Prob. 13SQCh. 10 - Which of the following statements is incorrect? a....Ch. 10 - Prob. 15SQCh. 10 - Explain why somebut not allof an organism's genes...Ch. 10 - Do the same mechanisms that govern gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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- Homeotic gene products _______. a. flank a bacterial operon b. map out the overall body plan in embryos c. control the formation of specific body partsarrow_forwardIn mice, the copy of the Igf2 gene that is inherited from the mother isnever expressed in her offspring. This happens because the Igf2 genefrom the mothera. always undergoes a mutation that inactivates its function.b. is deleted during oogenesis.c. is deleted during embryonic development.d. is not transcribed in the somatic cells of the offspring.arrow_forwardIn 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 factorarrow_forward
- With regard to cancer cells, which of the following statementsare true?A. Cancer cells are clonal, which means they are derived from asingle mutant cell.B. To become cancerous, cells usually accumulate multiplegenetic changes that eventually result in uncontrolledgrowth.C. Most cancers are caused by oncogenic viruses.D. Cancer cells have lost the ability to properly regulate celldivision.arrow_forwardWhich of these processes is MOST directly involved in the resorption of a tadpole’s tail during development? A. apoptosis B. mitosis C. phagocytosis D. protein synthesisarrow_forwardStargardt's disease was one of these that can be treated using embryonic stem cells. Why would scientist chose to use this type of stem cell in treatment of Stargard's? A. There ae not ethical issue concerning their use B. They retain stem cell properties even after specialization C. They are able to differentiate into the required cell type D. They are already specialized for this funtionarrow_forward
- Virtually all steps of embryological development depend on: a. Alterations in the genome b. Tumor Stem Cells c. Changes in programs of gene expression d. Telomerasearrow_forwardEmbryonic stem cells used for research most commonly come from: A) an embryo created in a fertility clinic and legally released for scientific research B) an embryo that is approximately four to six days past fertilization C) the embryoblast layer of an embryo in the blastocyst stage D) all of the abovearrow_forwardMutations to proto-oncogenes act toa. increase cell division. c. repress oncogenes.b. increase DNA repair. d. decrease cell divisionarrow_forward
- Homeotic gene expression _______. a. occurs via bacterial operons b. maps out the overall body plan in embryos c. triggers formation of a specific body partarrow_forwardThe 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_forwardMorphogens area. molecules that disrupt normal development.b. molecules that convey positional information and promote changesin development.c. mutagenic agents that cause apoptosis.d. receptors that allow cells to adhere to the extracellular matrix.e. both a and carrow_forward
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