Which of the following are removed from mRNA after transcription?

Question

Quizplus · Accepted Answer

Introns are non-coding sequences within a gene that are transcribed into pre-mRNA but are removed by splicing after transcription, leaving only the coding exons to form the mature mRNA.

Answer: D)exons 
 Exons make up the coding sequence of a gene and are transcribed into pre-mRNA and remain in the mature mRNA after splicing. Therefore, they are not removed from mRNA after transcription.

B)transposons and C)spacer DNA are not typically removed from mRNA after transcription, but they are not the best choice(s) for this question as introns and exons are more directly related to mRNA processing.

Which of the Following Are Removed from MRNA After Transcription