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Question
In eukaryotes which of the following is removed from initially transcribed RNA before it is transported to the cytoplasm for translation?
In eukaryotes which of the following is removed from initially transcribed RNA before it is transported to the cytoplasm for translation?
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Solution
The correct option is B Intron
Option “A” is correct as, in Eukaryotes, the non-coding regions (Introns) are removed and the coding regions (Exons) are joined together, this process is known as splicing and it takes place within the nucleus region either at the time of transcription or immediately after it.
Option “B” is incorrect as 3′ Poly A tail allows the mature mRNA to be exported to the nucleus and translated into the protein, preventing its degradation.
Option “C” is incorrect as Ribosome binding site is needed for placing the ribosome at the time of initiation of translation.
Option “D” is incorrect as 5′ cap is needed for the promotion of translation and preventing the degradation through exonucleases.
Hence, the correct answer is option “A” – Intron.
Option “A” is correct as, in Eukaryotes, the non-coding regions (Introns) are removed and the coding regions (Exons) are joined together, this process is known as splicing and it takes place within the nucleus region either at the time of transcription or immediately after it.
Option “B” is incorrect as 3′ Poly A tail allows the mature mRNA to be exported to the nucleus and translated into the protein, preventing its degradation.
Option “C” is incorrect as Ribosome binding site is needed for placing the ribosome at the time of initiation of translation.
Option “D” is incorrect as 5′ cap is needed for the promotion of translation and preventing the degradation through exonucleases.
Hence, the correct answer is option “A” – Intron.
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