The DNA sequence where RNA polymerase attaches and initiates transcription.Group of answer choicesintronanticodonTATA boxcodonexonpromoter

To identify the specific DNA sequence where RNA polymerase attaches and initiates transcription, we should analyze the provided options.

1. Intron: Non-coding sections of a gene that are removed during RNA processing.

2. Anticodon: A sequence of three nucleotides in tRNA that pairs with a complementary codon in mRNA during translation.

3. TATA Box: A DNA sequence that is part of the promoter region. It's generally found about 25-30 base pairs upstream of the transcription start site and is crucial for initiating transcription by RNA polymerase.

4. Codon: A sequence of three nucleotides in mRNA that codes for a specific amino acid during translation.

5. Exon: Coding sections of a gene that remain in the mRNA after splicing.

6. Promoter: The region of DNA where RNA polymerase binds to initiate transcription. It usually contains specific sequences, such as the TATA box.

Conclusion:

The correct answer to the question is promoter, as this is the area where RNA polymerase binds to start transcription. The TATA box is an important part of the promoter, but the promoter encompasses a broader region. Therefore, promoter is the most inclusive and accurate answer.