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In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the nucleus. The pre-MRNA is spliced, given a polyA tail and a cap. Examine the pre- MRNA shown below, then choose the one mature MRNA it would become after post-transcriptional modification. Pre-MRNA 5' EXON R INTRON A EXON S INTRON B EXON T 3 polyA tail R сар 3' • 5' сар R polyA tail 3' сар B polyA tail 3' polyA tail RAS BT сар 3" сар RASBT polyA tail

In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the nucleus. The pre-MRNA is spliced, given a polyA tail and a cap. Examine the pre- MRNA shown below, then choose the one mature MRNA it would become after post-transcriptional modification. Pre-MRNA 5' EXON R INTRON A EXON S INTRON B EXON T 3 polyA tail R сар 3' • 5' сар R polyA tail 3' сар B polyA tail 3' polyA tail RAS BT сар 3" сар RASBT polyA tail

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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In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the nucleus. The pre-MRNA is spliced, given a polyA tail and a cap. Examine the pre- MRNA shown below, then choose the one mature MRNA it would become aftër post-transcriptional modification. Pre-MRNA 5' EXON R INTRON A EXON S INTRON B EXON T 31 polyA tail S сар 3' • 5' сар T polyA tail 3" сар polyA tail 3' polyA tail RAS в т сар 3" RAS BT polyA tail 3' сар
Transcribed Image Text:In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the nucleus. The pre-MRNA is spliced, given a polyA tail and a cap. Examine the pre- MRNA shown below, then choose the one mature MRNA it would become aftër post-transcriptional modification. Pre-MRNA 5' EXON R INTRON A EXON S INTRON B EXON T 31 polyA tail S сар 3' • 5' сар T polyA tail 3" сар polyA tail 3' polyA tail RAS в т сар 3" RAS BT polyA tail 3' сар
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