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
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
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter16: Gene Expression
Section: Chapter Questions
Problem 17RQ: An unprocessed pre-mRNA has the following structure. Which of the following is not a possible size...
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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
Transcribed Image Text:Primary RNA transcript= 748 nucleotides
5' Exon 1
Exon 2
Exon 3
3"
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