What are the stop codons in DNA replication?

In the context of genetic coding, stop codons play a crucial role in signaling the termination of protein synthesis during translation, not DNA replication. The correct stop codons in messenger RNA (mRNA) include UAA, UAG, and UGA. These codons do not code for any amino acid and instruct the ribosome to halt the translation process.

The options that contain ATT, ATC, or ACT, which are mentioned in the provided answer, actually represent DNA codons that code for amino acids. These sequences are part of the coding regions in DNA but do not serve as stop codons.

In contrast, the correct answer should include UAA, UAG, and UGA as the appropriate stop codons, as these direct the termination of protein coding sequences. This understanding is vital for students studying genetics and molecular biology, as it emphasizes how genetic information is translated into functional proteins.