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What is the role of mRNA during protein synthesis?
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15. Gene Expression
Central Dogma
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Where does the mRNA move to after it is transcribed in the nucleus?
A
Endoplasmic reticulum
B
Ribosome
C
Mitochondria
D
Golgi apparatus
Guida verificata passo dopo passo1
Understand that mRNA is transcribed from DNA in the nucleus of a cell. This is the first step in the process of protein synthesis.
After transcription, the mRNA must be transported out of the nucleus to the cytoplasm where protein synthesis occurs.
Identify the cellular structure responsible for protein synthesis. This is the ribosome, which reads the mRNA sequence to assemble amino acids into a polypeptide chain.
Recognize that the ribosome can be found either floating freely in the cytoplasm or attached to the endoplasmic reticulum, but the initial destination of mRNA is the ribosome itself.
Conclude that after transcription in the nucleus, mRNA moves to the ribosome in the cytoplasm to begin the process of translation, where it will be used to synthesize proteins.
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