Question

question: what crucial step occurs in transcription? answer options: select one of four dna is shuttled to the cytoplasm. dna is copied to rna in the cell nucleus. dna is broken down. ribosomes create dna.

Explanation:

To determine the correct answer, we analyze each option:

• "DNA is shuttled to the cytoplasm": DNA remains in the nucleus (in eukaryotes), so this is incorrect.
• "DNA is copied to RNA in the cell nucleus": Transcription is the process where DNA is transcribed (copied) into RNA, and it occurs in the nucleus (for eukaryotes), so this matches the definition of transcription.
• "DNA is broken down": Transcription is about copying, not breaking down DNA, so this is incorrect.
• "Ribosomes create DNA": Ribosomes are involved in translation (protein synthesis) and do not create DNA, so this is incorrect.

Answer:

B. DNA is copied to RNA in the cell nucleus.