Analysis of DNA Regulatory Sequences and Protein-Protein Interaction

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main focus of the Luciferase reporter assay?

  • The enhancer sequences
  • The TATA box
  • The gene of interest
  • The promoter controlling the Luciferase gene (correct)

Which of the following is NOT a non-coding regulatory sequence discussed in the text?

  • TATA box
  • Silencers
  • Enhancers
  • Exons (correct)

What happens if a regulatory element binds to a gene within a cell?

  • The cell undergoes apoptosis
  • The gene is transcribed and expressed (correct)
  • The gene is silenced
  • The gene mutates

In the Luciferase reporter assay, what controls the expression of the luciferase gene?

<p>Proteins (A)</p> Signup and view all the answers

Which of the following sequences enhances gene expression?

<p>Promoter proximal element (B)</p> Signup and view all the answers

What is the purpose of placing the promoter controlling Luciferase ahead of it in the Luciferase reporter assay?

<p>To examine the regulatory element controlling luciferase expression (C)</p> Signup and view all the answers

What is the enzyme responsible for converting D-luciferin into oxyluciferin in fireflies?

<p>Firefly luciferase (C)</p> Signup and view all the answers

In the context of gene activity, what is the function of a reporter gene?

<p>Detects gene expression activity (A)</p> Signup and view all the answers

What role does recombinant DNA technology play in studying gene activity?

<p>Allows investigation of gene activity under specific conditions (A)</p> Signup and view all the answers

How does a luciferase reporter assay help in analyzing DNA regulatory sequences?

<p>Detects gene expression levels (C)</p> Signup and view all the answers

What is the fundamental purpose of studying the activity of a gene using a luciferase reporter assay?

<p>To elucidate gene function under specific conditions (D)</p> Signup and view all the answers

Which component enables scientists to study the role of enzymes in investigating transcriptional regulatory sequences?

<p>'Luciferase Reporter Assay' (B)</p> Signup and view all the answers

What is the function of the Core Promoter?

<p>Produces the basal expression of a gene (C)</p> Signup and view all the answers

In protein-protein interactions, what happens when two proteins are located at the side?

<p>They never interact with each other (B)</p> Signup and view all the answers

Which technique is used to study complex protein-protein interactions?

<p>Yeast two-hybrid system (D)</p> Signup and view all the answers

What is the purpose of Co-immunoprecipitation in studying protein interactions?

<p>Isolates only the protein of interest from a cell sample (A)</p> Signup and view all the answers

What is the function of a DNA library?

<p>Stores genetic information for research purposes (A)</p> Signup and view all the answers

Which type of blotting technique is suitable for detecting proteins?

<p>Western blotting (D)</p> Signup and view all the answers

What is the main difference between a genomic library and a cDNA library?

<p>Genomic libraries contain all genetic material, while cDNA libraries contain only exons. (D)</p> Signup and view all the answers

Why are cDNA libraries expected to differ when created from different cell types?

<p>Each cell type has distinct genes expressed, resulting in unique cDNA libraries. (C)</p> Signup and view all the answers

How are DNA fragments recombined with a plasmid in the process of creating a library?

<p>By using restriction endonucleases and ligase (B)</p> Signup and view all the answers

Why are clones of bacteria used to store specific DNA fragments in a library?

<p>Bacteria act as placeholders for easy retrieval of specific DNA fragments. (A)</p> Signup and view all the answers

What would be the outcome if genomic libraries were created from different cells of the same organism?

<p>The genomic libraries would be identical due to the shared genome across cell types. (B)</p> Signup and view all the answers

What is the purpose of introducing recombinant plasmids into bacteria in the DNA library creation process?

<p>To replicate and store DNA fragments efficiently (B)</p> Signup and view all the answers

What is the function of the activation domain in the yeast two-hybrid system?

<p>Responsible for activation of transcription (B)</p> Signup and view all the answers

Which sequence serves as the binding site for Gal4 in yeast?

<p>UAS (D)</p> Signup and view all the answers

In the yeast two-hybrid system, what happens if the DNA-binding domain and activation domain are not close to each other?

<p>Transcription is inhibited (C)</p> Signup and view all the answers

What is the role of Gal4 in the yeast two-hybrid system?

<p>Activates transcription (D)</p> Signup and view all the answers

What are the two domains that make up the transcription factor controlling UAS in yeast?

<p>BD and AD (C)</p> Signup and view all the answers

Which technology is used to create the special yeast cells with reporter genes controlled by UAS and Gal4 factor?

<p>Recombinant DNA technology (A)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Related Documents

Molecular BioChemistry II PDF

More Like This

Biologie: ADN et Chromatine
48 questions

Biologie: ADN et Chromatine

SecureTranscendental5624 avatar
SecureTranscendental5624
Use Quizgecko on...
Browser
Browser