FIll in the Blank: _____ genes involved in common function that are located and
ID: 3193682 • Letter: F
Question
FIll in the Blank: _____ genes involved in common function that are located and regulated together. Multiple Choice: 1. Which of the following illustrates negative control? a. a repressor that becomes active when bound to a corepressor and inhibits transcription b. a gene that binds a repressor and becomes active c. an activator that becomes active when bound to a coactivator and activates transcription d. a repressor that binds a gene and becomes inactive 2. In regulation of the lac operon, when lactose is present and glucose is absent a. the repressor is able to bind to the operator b. the repressor is unable to bind to the operator c. transcription of structural genes occurs d. transcription of lactose occurs e. both b and c are correct 4. in operon models, the function of the promoter is to a. code for the repressor protein b. bind with RNA polymerase c. bind to the repressor d. code for the regulator gene 5. Which of the following statements is/are true regarding operons? a. the regulator gene is transcribe the structural genes b. the structural genes are always transcribed c. all genes are always transcribed d. the regulator gene has its own promoter 6. Which of the following regulate gene expression in the eukaryotic nucleus? a. posttranslational control b. transcriptional control c. translation control d. posttranscriptional control e. both b and d are correct 7. which of the following mechanisms may create multiple mRNAs from the same gene a. posttranslational control b. alternative mRNA splicing c. binding of a transcription factor d. chromatin remodeling e. miRNAs 9. Alternative mRNA splicing is an example of which type of regulation of gene expression? a. transcriptional b. posttranscriptional c. translational d. posttranslational 12. Which of these might cause a proto-oncogene to become an oncogene? a. exposure of the cell to radiation b. exposure of the cell to certain chemicals c. viral infection of the cell d. exposure of the cell to pollutants e. all of these are correct 13. A cell is cancerous. You might find an abnormality in a. a proto-oncogene b. a tumor supressor gene c. regulation of the cell cycle d. tumor cells e. all of these are correct 14. a tumor supressor gene a. inhibits cell division b. opposes oncogenes c. prevents cancer d. is subject to mutations e. all of these are correct 18. which of these is a characteristic of cancer? a. it may involve a lack of mutations over a length of time b. it cannot be tied to particular environmental factors c. apoptosis is one of the first developmental effects d. mutations in certain types of genes e. it typically develops within a short period of time 19. Which is not evidence that eukaryotes control transcription? a. euchromatin/ heterochromatin b. existence of transcription factors c. lampbrush chromosomes d. occurrence of mutations e. all of these are correct Please help! My teacher has gone over the edge! he usually only gives us chapter study sheets that correspond to only one chapter beyond what he wants us to read, but this time, I can't find most of the answers! I am using Biology 7th edition by Campbell/Reece, reading chapter 17 and the worksheet is from (I think) chapter 13 of Biology 10th edition by Sylvia S. Mader. The answers are not on the website if you are wondering and that is why I am turning here.Explanation / Answer
1 -10 b c b c d d a a a b 11-19 d c b d b c a a a
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