Multiple Choice
What is the role of mRNA in the process of protein synthesis according to the central dogma of molecular biology?
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15. Gene Expression
Introduction to Transcription
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Which of the following is true of transcription factors in the process of transcription?
A
Transcription factors are responsible for synthesizing RNA from a DNA template.
B
Transcription factors bind to DNA sequences to regulate gene expression.
C
Transcription factors are involved in the replication of DNA.
D
Transcription factors are enzymes that catalyze the formation of peptide bonds.
Verified step by step guidance1
Understand the role of transcription factors: Transcription factors are proteins that help regulate the process of transcription, which is the synthesis of RNA from a DNA template.
Identify the function of transcription factors: They bind to specific DNA sequences, usually near the genes they regulate, to control the rate of transcription.
Differentiate transcription factors from other proteins: Unlike enzymes that synthesize RNA or catalyze peptide bonds, transcription factors do not directly participate in these processes.
Clarify the misconception about replication: Transcription factors are not involved in DNA replication; their primary role is in gene expression regulation during transcription.
Conclude with the correct statement: Transcription factors bind to DNA sequences to regulate gene expression, ensuring that genes are expressed at the right time and in the right amount.
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