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Those part of the DNA or gene that contribute to the mRNA product is called _________

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Those part of the DNA or gene that contribute to the mRNA product is called _________

(a) Introns

(b) Intervening sequences

(c) Exons

(d) Split genes

I got this question in an international level competition.

Question is taken from Types of Biological Molecules in section Structures and Functions of Biological Molecules of Cell Biology

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Right option is (c) Exons

Easy explanation: Intervening sequences, also called introns are the portions of DNA excluded during transcription and thus are not there in the mRNA product. Exons are the part of DNA transcribed to form mRNA. The genes with intervening sequences are called split genes.

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