The Regulation Of Gene Expression! Trivia Quiz
10 Questions
| Total Attempts: 2032
(47).jpg "The Regulation Of Gene Expression! Trivia Quiz - Quiz")
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Questions and Answers
- 1.The cluster of genes important in lactose metabolism in E. coli, along with the controlling DNA elements for these genes are known by the very brief acronym:
- A.
Lac operon
- B.
Lactose regulating gene and their control elements
- C.
Genes that regulate the breakdown of the disaccharide lactose plus the regulatory sequences near them
- D.
The regulator gene, CAP-binding site, promoter, operator, 5' UTR coding region, ß-galactosidase gene, galactoside permease gene, and transacetylase gene
- 2.In an E. coli culture growing in medium with lactose, the lac operon is on because ______ cannot bind to a DNA site adjacent to the promoter.
- 3.In the lac operon of E. coli, repressor protein binds to the ________.
- 4.When lactose in an E. coli culture, allolactose binds to the _______ .
- 5.When _________ is bound to repressor protein, repressor protein cannot bind to the operator.
- 6.The lac operon of E. coli is transcribed when:
- A.
Lactose is present.
- B.
Repressor protein is bound to the operator.
- C.
Allolactose binds to the promoter.
- D.
All of the above.
- 7.The site on the DNA where a specific protein binds that results in RNA polymerase binding to the promoter are called the _________.
- 8.A (an) ________ is a small RNA molecule that is part of a RISC and binds precisely to an mRNA and results in its cleavage.
- 9.A (an) ________ is a small RNA molecule that is part of a RISC and binds imprecisely to an mRNA and turns off its translation.
- 10.When __________ occurs, a gene's pre-mRNA can result in the synthesis of two different polypeptides.
Do you know anything about genes? Do you suppose you can get through this quiz? Gene is a fraction of the DNA strand, while the chromosome is the whole strand of DNA. There are more chromosomes than genes in the human body....
Questions: 8 | Attempts: 5478 | Last updated: Mar 22, 2022
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Sample QuestionGenes are...
Do you know anything about gene expression? Do you think you know as much as necessary to pass this quiz? Gene expression is the process by which the information encoded in a gene is utilized to direct the path of the protein...
Questions: 16 | Attempts: 500 | Last updated: Mar 18, 2022
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Sample QuestionTranslation occurs in the:
Mark the letter of the letter of choice then click on the next button. Answer will be revealed after each question. No time limit to finish the exam. Good luck!
Questions: 20 | Attempts: 311 | Last updated: Mar 20, 2022
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Sample QuestionWhich of the following is the mRNA start codon in most cases?
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