Multiple Choice
Which complementary base pairings occur between DNA and RNA during transcription?
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15. Gene Expression
Central Dogma
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Which of the following refers to the RNA-to-protein step in the expression of genes?
A
Translation
B
Transcription
C
Reverse Transcription
D
Replication
Verified step by step guidance1
Begin by understanding the central dogma of molecular biology, which describes the flow of genetic information in cells. It involves three main processes: replication, transcription, and translation.
Replication is the process of copying DNA to produce identical DNA molecules. This is not involved in the RNA-to-protein step.
Transcription is the process where the DNA sequence is copied into RNA. This occurs before the RNA-to-protein step, so it is not the correct answer.
Reverse transcription is a process where RNA is converted back into DNA, typically seen in retroviruses. This is not part of the normal gene expression pathway in cells.
Translation is the process where the sequence of an mRNA molecule is decoded to produce a specific polypeptide or protein. This is the RNA-to-protein step in gene expression.
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