17 Addition of the transcription factors KIf4, Sox2 and Oct4 to a fully differentiated cell, leads to its de-differentiation. This de-differantiated cell can then a)be differentiated into a few specific cell types B)be diferentiated into any cell type c)only be differentiated back to its original cell fate d)remain as a stem cell

17 Addition of the transcription factors KIf4, Sox2 and Oct4 to a fully differentiated cell, leads to its de-differentiation. This de-differantiated cell can then a)be differentiated into a few specific cell types B)be diferentiated into any cell type c)only be differentiated back to its original cell fate d)remain as a stem cell

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter16: Regulation Of Gene Expression

Section: Chapter Questions

Problem 5TYK

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Describe how RBPs can prevent miRNAs from degrading an RNA molecule.
8:20 ■■ LTE < Spring 2024 - Senior Comprehensives (... Question 6ɔ (ividitudtory) In the Lac operon, what happens when allolactose attaches to the repressor protein? a) b) c) the repressor is induced to attach to the promoter RNA polymerase is induced to attach to the operator lactose synthesis enzymes are produced by genes Z, Y,A d) the repressor is inactivated Question 88 (Mandatory) What is the purpose of X-chromosome inactivation in mammals? a) It accomplishes dosage compensation. b) It assists in the interactions beteeen genes Tra and Dsx. c) It prevents trisomy from occurring. d) It produces the testis determination factor. Question 94 (Mandatory) Duchenne muscular dystrophy is inherited in an X- linked recessive pattern. A female is known to be heterozygous for Du muscular dystrophy XD xd
19. In eukaryotic gene expression, non-coding RNAS such as miRNA (microRNA) have an important role in gene regulation. That role is to ... A) bind to target mRNA to prevent translation B) bind to target mRNA to prevent transcription C) block RNA polymerase from reaching the promoter D) increase levels of chromatin packing
/20. In class, we discussed diffferent types of genetic change that can cause a normal gene (proto- oncogene) to become a cancer-causing gene (oncogene), Which of the following would not be a cause? A) translocation or transposition (movement of DNA within the same genome) B) gene ampliffication (increased number of copies of a given gene) C) epigenetic change D) point mutation that changes the gene's product E) loss of telomeres during DNA replication ancer?
Give typed explanation Use the diagram representing the typical steps in gene expression and protein formation to respond. All of the following help the cell regulate gene expression during Step 2 of protein formationexcepta)general factors that are required for the RNA polymerase to bind to the promoter.b)repressors binding to the operator preventing the RNA polymerase from progressing.c)specialty factors binding to the RNA polymerase, altering its specificity.d)tRNA that binds to the RNA polymerase in the presence of complementary mRNA.
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Give 4 examples of transcription factors / non-structural proteins you have learned in this course? Identify the most commonly used technique for diagnosing COVID-19? And the clinical sample for each technique. …….…… virus can cause encephalitis, cancer, sexually transmitted disease, infect external genitalia, mucosal surfaces, gladiatorum, and/or other diseases. How can the infection with this virus be avoided? Suggest two ways of prevention or to destroy the virus.
11. TBP stands for? a) Transcription factor binding protein b) Transcription associated factor c) TATA box polymerase d) TATA-box binding protein
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Give typing answer with explanation and conclusion a) List three eukaryotic gene expression mechanisms that do not occur in prokaryotes. For two of these, give specific examples and the functional outcomes. b) Describe what is meant by the term “RNA silencing”. c) Using diagrams, give two examples of RNA silencing mechanisms and indicate one difference.
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The RB (retinoblastoma) protein normally [ Select] ["keep a transcription factor in an inactive state", "keep a transcription factor in an active state", "keep the CDK in a phosphorylated state", "block the function of the APC"] ...But it can be deactivated by [ Select ] ["ubiquitination", "methylation", "phosphorylation", "the use of a GAP"] .Mutations in Rb can lead to cancer because these mutations [ Select ] ["result in constitutive transcription leading to promotion of the cell cycle", "keep CDKs off", "deactivate p53", "increase the production of growth hormones"] PLEASE SELCET THE CORRECT ONE FOR SECTION ONE . EACH SENTECNE HAVE 4 SECTION TO PICK FROM.