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.

Answer: (B)

Verified step by step guidance

1. 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.
2. Identify the function of transcription factors: They bind to specific DNA sequences, usually near the genes they regulate, to control the rate of transcription.
3. Differentiate transcription factors from other proteins: Unlike enzymes that synthesize RNA or catalyze peptide bonds, transcription factors do not directly participate in these processes.
4. Clarify the misconception about replication: Transcription factors are not involved in DNA replication; their primary role is in gene expression regulation during transcription.
5. 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.