Multiple Choice
Transcribed mRNA exits the nucleus through the _____________.
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15. Gene Expression
Introduction to Transcription
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Where does transcription occur in eukaryotic cells?
A
In the nucleus
B
In the mitochondria
C
On the ribosomes
D
In the cytoplasm
Verified step by step guidance1
Understand the process of transcription: Transcription is the process by which the genetic information in DNA is copied into messenger RNA (mRNA). This is the first step in gene expression.
Identify the location of DNA in eukaryotic cells: In eukaryotic cells, DNA is stored in the nucleus, which is a membrane-bound organelle.
Recognize where transcription machinery operates: The enzymes and factors required for transcription, such as RNA polymerase, operate in the nucleus where the DNA is located.
Eliminate incorrect options: Transcription does not occur in the mitochondria (which has its own DNA and transcription system), on the ribosomes (which are involved in translation, not transcription), or in the cytoplasm (where translation occurs).
Conclude that transcription occurs in the nucleus of eukaryotic cells, as this is where the DNA template is located and where the transcription machinery functions.
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