Exons of a gene are defined as:

A. the untranslated regions of the corresponding mRNA
B. regions in the corresponding mRNA that are involved in initiation of transcription
C. regions that are not transcribed by RNA polymerase
D. regions that are excised from the corresponding protein after it is synthesized
E. regions that remain in the corresponding mRNA after splicing

E) because the exons remain present within the final mature RNA product of that gene after introns have been removed by RNA splicing.

Answered by JennyWL | 2024-06-10

Exons are the coding regions of a gene that remain in mature mRNA after splicing. They are essential for the synthesis of proteins, as they contain the protein-coding sequences. The chosen answer is E, which states that exons are the regions that remain in the corresponding mRNA after splicing.
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Answered by Anonymous | 2024-12-20