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Multiple Choice
Which process involves the decoding of an mRNA sequence to produce a polypeptide chain?
A
Replication
B
Translation
C
Transcription
D
Splicing
Verified step by step guidance
1
Understand the central dogma of molecular biology, which describes the flow of genetic information from DNA to RNA to protein.
Recall that replication is the process of copying DNA to produce identical DNA molecules, so it does not involve mRNA or polypeptides.
Recognize that transcription is the process where DNA is used as a template to synthesize messenger RNA (mRNA), but no polypeptide is produced at this stage.
Identify that splicing is a modification process where introns are removed from the pre-mRNA transcript to produce mature mRNA, but it does not involve decoding or polypeptide synthesis.
Conclude that translation is the process where the mRNA sequence is decoded by the ribosome to assemble amino acids into a polypeptide chain, which is the correct answer.