Answered: You are studying a gene containing…

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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You are studying a gene containing three exons (exon 1 = 66 nucleotides , exon 2 = 99 nucleotides , and exon 3 = 333 nucleotides ) that produces a primary RNA transcript 748 nucleotides long . Gel electrophoresis analysis shows different size mature transcripts are produced in three different cell types . The sizes of the mature transcripts are the following : 1. Neuronal nalcells = 498 nucleotides 2. Muscle cells = 600 nucleotides 3. Liver cells = 399nu nucleotides Primary RNA ranscript = 748 nucleotides a. Name the strategy that allows the same gene to produce different mature transcripts in different tissues . b. Describe the ways (or combinations of exons /introns ) used to produce each one ofthe three mature transcripts . Label the each mature transcripts and include its length . c. Indicate the length of the polypeptide encoded by each mature transcript

Primary RNA transcript= 748 nucleotides
5' Exon 1
Exon 2
Exon 3
3"

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