Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 10, Problem 8SQ
Summary Introduction
Introduction: Gene knock-out techniques are used for inactivating a particular gene by altering a region of DNA from that gene. These techniques are generally used for the study of loss of function of a gene during its development.
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6. _____ is a DNA sequence.
1.Coactivator
2.Corepressor
3.Enhancer
4. Inducer
5.Transactivator
Match the terms with the most suitable description. ___ operon a. makes a man out of you ___ Circadian rhythm b. binding site for repressor ___ Barr body c. can be epigenetic ___ differentiation d. inactivated X chromosome ___ mRNA zip code e. controls multiple genes ___ DNA methylation f. localization mechanism ___ eyeless g. speeds transcription ___ activator h. required for eye formation ___ SRY gene i. effect of regulatory loops ___ operator j. cells become specialized
Match the gene on the left with the gene category on the right.
ERBB2
E-cadherin
BRCA1
Cdk4
A.
oncogene
B.
proto-oncogene
C.
low expression in invasive cells
D.
tumor suppressor gene
Chapter 10 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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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- Match the terms with the most suitable description. ___ methylation a. makes a man out of you ___ SRY gene b. binding site for repressor ___ operator c. cells become specialized ___ Barr body d. can be epigenetic ___ differentiation e. inactivated X chromosomearrow_forwardOperons______ . a. only occur in bacteria b. include multiple genes c. involve selective gene expressionarrow_forwardMutations 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-oncogenearrow_forward
- A repressor is a __________ that _________ transcription. a. small effector molecule, inhibits b. small effector molecule, enhances c. regulatory protein, inhibits d. regulatory protein, enhancesarrow_forwardBinding of______ to_______ in DNA can increase the rate of transcription of specific genes. a. activators; repressors b. activators; enhancers c. repressors; operators d.repressors; enhancerarrow_forwardAs trytophan levels increase in the cell, _____ bind(s) to active aporepressors, causing ______ of tryptophan operon. a. inducers, negative regulation b. repressors, co-repressing c. tryptophan, negative regulation d. tryptophan, positive regulation e. B-lactose, negative regulationarrow_forward
- 1. The research done by Gregor Mendel is important because it showed a. physical traits in bacteria are determined by chromosomes. b. chromosomes in pea plants separate during cell division. c. DNA is present in bacteria. d. physical traits in pea plants are passed between generations. 2. Transcription of the lacZ and lacy genes of the lac operon begins when a. the repressor is released from the promoter b. the repressor protein binds to the inducer c. RNA polymerase binds to the lacZ gene d. lactose binds to the operator 3. During DNA replication, the function of RNA primers is to: a. serve as a binding site for DNA ligase b. serve as starting points for DNA strand elongation by DNA polymerase III in prokaryotes c. serve as starting points for DNA strand elongation by DNA polymerase I in the 3' - 5' direction d. open replication bubbles 4. Which statement about purines is true? a. Each purine is base pair with a pyrmidine. b. They are adenine and guanine. c. They are nitrogenous bases…arrow_forwardMechanisms that govern gene expression do not operate during______ . a. transcription c. translation b. RNA processing d. knockoutsarrow_forwardAn activator is to an enhancer as a(n) ____ is to a silencer. Mediator Repressor Inducer Transcription factorarrow_forward
- The key to epigenetic regulation is ________. a. controlling accessibility to transcription factors and RNA polymerase binding b. biochemical modification of binding factors c. physical modification of the DNAarrow_forwardProteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c. operators b. transcription factors d. enhancersarrow_forwardThe RNA-induced silencing complex (RISC) _____i. Binds to and unwinds ds siRNA/miRNA to produce ss siRNAs/miRNAii. Creates a block and inhibits translation when the ss siRNA matches the mRNAiii. Mediates the degradation of the siRNA or miRNA to repress gene expression a. I onlyb. II onlyc. I and IId. II and IIIarrow_forward
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