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Multiple Choice
Which of the following best explains the role of transcription in a cell?
A
Transcription is the process of copying a segment of DNA into RNA.
B
Transcription is the modification of RNA after it is synthesized.
C
Transcription is the replication of DNA during cell division.
D
Transcription is the process of translating RNA into proteins.
Verified step by step guidance
1
Understand the concept of transcription: Transcription is a fundamental process in molecular biology where a segment of DNA is copied into RNA, specifically messenger RNA (mRNA). This is the first step in gene expression.
Identify the role of transcription: The primary role of transcription is to convert the genetic information stored in DNA into a form that can be used to produce proteins, which are essential for various cellular functions.
Differentiate transcription from other processes: Transcription is distinct from DNA replication, which occurs during cell division, and translation, which is the process of synthesizing proteins from RNA.
Clarify the modification of RNA: While RNA can be modified after transcription (such as splicing, capping, and polyadenylation), these modifications are not part of the transcription process itself.
Select the correct explanation: Based on the understanding of transcription, the correct explanation is that transcription is the process of copying a segment of DNA into RNA.