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Read the following experiment and interpret the results to form your conclusion. Experimental data: S bacteria were heat killed and cell extracts were isolated. The extracts contained cellular components, including lipids, proteins, DNA, and RNA. The extracts were mixed with live R bacteria and then injected together into mice along with various enzymes (proteases, RNAses, and DNAses). Proteases degrade proteins, RNAses degrade RNA, and DNAses degrade DNA. Based on these results, what is the transforming principle?

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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 8, Problem 5QP
Textbook Problem
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Read the following experiment and interpret the results to form your conclusion. Experimental data: S bacteria were heat killed and cell extracts were isolated. The extracts contained cellular components, including lipids, proteins, DNA, and RNA. The extracts were mixed with live R bacteria and then injected together into mice along with various enzymes (proteases, RNAses, and DNAses). Proteases degrade proteins, RNAses degrade RNA, and DNAses degrade DNA.

Chapter 8, Problem 5QP, Read the following experiment and interpret the results to form your conclusion. Experimental data:

Based on these results, what is the transforming principle?

Summary Introduction

To analyze: The experimental data and interpret the results.

Introduction: The process of transformation occurs when cell components of S cell are extracted and mixed with R cells. Furthermore, the mixture of cell extract with R cells including enzymatic treatment is injected into mice.

Explanation of Solution

Experimental data: S bacteria were heat killed and cell extracts were isolated. The extracts contained cellular components, including lipids, proteins, DNA, and RNA. The extracts were mixed with live R bacteria and then injected together into mice along with various enzymes (proteases, RNAses, and DNAses). Proteases degrade proteins, RNAses degrade RNA, and DNAses degrade DNA.

S extract + live R cells = mouse dies

S extract + live R cells + protease = mouse dies

S extract + live R cells + RNAse = mouse dies

S extract + live R cells + DNAse= mouse lives

Analysis & Interpretation: When S extract with live R cells are injected into mouse then they die because the DNA of S extract transforms the R cells into S cells...

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