Study Guide for Campbell Biology
Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 37, Problem 3TYK
Summary Introduction

Introduction: Soil contamination (soil pollution) is considered as a part of land degradation. It is mainly caused by the existence of xenobiotic chemicals in the soil environment. Agricultural chemicals, industrial waste, and improper waste disposal contribute to major soil contamination. There are certain methods available for decontamination of the soil as well as water; for example, phytoremediation.

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You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?
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