Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 26 - 26.4 - Concept Check - Page 564: 3


Fig. 18.13 shows that a gene can produce different proteins depending on which of its many exons are used to produce that protein-- not all are used for all proteins from the same gene. Thus, one gene can produce different proteins (different overall sequences) with different functions in different tissues.

Work Step by Step

This reviews the idea, repeatedly stated in earlier chapters, that one gene can produce multiple proteins via differential splicing of mRNA. That means proteins with different overall sequences, and sequence determines function. Thus, multiple protein functions from one gene as it is expressed at different times in different places in an organism.
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