Practice Transcriptional Regulation - 2.1 | Nucleic Acids and Protein Synthesis (HL) | IB 12 Biology
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Transcriptional Regulation

2.1 - Transcriptional Regulation

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Practice Questions

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Question 1 Easy

What is the function of a promoter in transcription?

💡 Hint: Think of it as the 'start button' for gene expression.

Question 2 Easy

Name one type of epigenetic modification.

💡 Hint: This modification often silences genes.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What role do enhancers play in gene expression?

They initiate transcription
They increase transcription levels
They are responsible for mRNA translation

💡 Hint: Consider how enhancers work with promoters.

Question 2

True or False: DNA methylation usually activates gene expression.

True
False

💡 Hint: Recall what happens when methyl groups are added.

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

The gene for a specific growth factor is found to be consistently silenced in certain cancer cells. Discuss how DNA methylation might contribute to this phenomenon and propose a method for reversing this silencing.

💡 Hint: Think about how methyl groups affect gene activity.

Challenge 2 Hard

Suppose a new transcription factor is discovered that enhances the expression of a gene involved in heart disease. Discuss how this factor's pathway could be potentially targeted for therapeutic intervention.

💡 Hint: Consider how factors interact with other cellular pathways.

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