Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 19 - Genes, Development, and Evolution - 19.2 - Gene Expression Differences Determine Cell Fate and Cell Differentiation - 19.2 Recap - Learning Outcomes - Page 409: 1

Answer

A particular cytoplasmic difference is the development of a distinct “top” and “bottom” orientation of an organism. This is referred to as polarity, which is specified by an animal pole at the head of the zygote and a vegetal pole at the tail. This polarity allows cell fates to manifest correctly during early development.

Work Step by Step

A particular cytoplasmic difference is the development of a distinct “top” and “bottom” orientation of an organism. This is referred to as polarity, which is specified by an animal pole at the head of the zygote and a vegetal pole at the tail. This polarity allows cell fates to manifest correctly during early development.
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