Campbell Biology (11th Edition)

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

Chapter 18 - 18.4 - Concept Check - Page 386: 4

Answer

These different cells have already received positional information, perhaps as a result of information being present in the cells from which they are descended (cytoplasmic determinants), which leads some to express receptors and others to express signaling molecules.

Work Step by Step

Review Concept 18.4. This question highlights the way that information and cellular differentiation is a progressive thing, dependent on past information and gene expression.
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