PRINCIPLES OF LIFE
PRINCIPLES OF LIFE
3rd Edition
ISBN: 9781319017712
Author: HILLIS
Publisher: MAC HIGHER
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Chapter 23.2, Problem 4RA

a.

Summary Introduction

To describe: The reason due to which only root apical meristem cells contain radioactive thymidine at 0 hours of incubation.

Introduction: Tips of roots and shoots consist of apical meristem tissues. They can differentiate into different types of cells. Division and growth in meristematic tissue lead to the growth of plants.

b.

Summary Introduction

To calculate: The percentage of radioactive cells, plotting radioactive cells percentage over time.

Introduction: Apical meristems are present at tips of root and shoots divide to form new cells and increase the length of roots and shoots.

c.

Summary Introduction

To analyze: Rise and fall in the percentage in radioactive cells in each region.

Introduction: Apical meristem divides continuously that result in the growth of the plant. Meristematic tissues are present at tips of roots and shoots.

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