The synthesis of a functional polypeptide using the information in an mRNA strand is
(a) Translation
(b) Transcription
(c) Replication
(d) Gene activation

검증된 단계별 안내

Understand the central dogma of molecular biology, which describes the flow of genetic information from DNA to RNA to protein.

Recall that transcription is the process where DNA is used as a template to synthesize messenger RNA (mRNA).

Recognize that translation is the process where the information in the mRNA strand is used to assemble amino acids into a polypeptide chain (protein).

Identify that replication refers to the copying of DNA to produce identical DNA molecules, not protein synthesis.

Conclude that the synthesis of a functional polypeptide from mRNA is called translation.

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주요 개념

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Translation

Translation is the process by which the genetic code carried by mRNA is decoded to produce a specific polypeptide or protein. It occurs in the ribosome, where tRNA molecules bring amino acids that are linked together in the order specified by the mRNA sequence.

Transcription

Transcription is the synthesis of an RNA strand from a DNA template. During this process, the DNA sequence of a gene is copied into mRNA, which then carries the genetic information needed for protein synthesis.

Replication

Replication is the process of copying the entire DNA molecule to produce two identical DNA strands. This is essential for cell division but does not involve the synthesis of proteins or polypeptides.

The synthesis of a functional polypeptide using the information in an mRNA strand is(a) Translation(b) Transcription(c) Replication(d) Gene activation