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Explain the difference between an intron and an exon.

Explain the difference between an intron and an exon.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Explain the difference between an intron and an exon.** In molecular biology, understanding the difference between introns and exons is important for grasping how genes are expressed in eukaryotic cells. - **Exons** are sequences in the DNA that are transcribed into mRNA and are retained in the final mature RNA after splicing. They contain the coding regions for protein synthesis. - **Introns** are sequences in the DNA that are also transcribed into mRNA but are removed during RNA processing. Introns do not code for proteins and are spliced out before translation. Overall, exons are expressed and translated into proteins, while introns are intervening sequences that are removed during mRNA processing.
Transcribed Image Text:**Explain the difference between an intron and an exon.** In molecular biology, understanding the difference between introns and exons is important for grasping how genes are expressed in eukaryotic cells. - **Exons** are sequences in the DNA that are transcribed into mRNA and are retained in the final mature RNA after splicing. They contain the coding regions for protein synthesis. - **Introns** are sequences in the DNA that are also transcribed into mRNA but are removed during RNA processing. Introns do not code for proteins and are spliced out before translation. Overall, exons are expressed and translated into proteins, while introns are intervening sequences that are removed during mRNA processing.
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