Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Question
Chapter 4, Problem 4Q
Summary Introduction
To analyze:
The total GC (guanine and cytosine) and AT (adenine and thymine) content of deoxyribose
Given:
The percent (%) of DNA bases from some organisms have been compiled in the form of Table 1 below:
Table 1: Percent of DNA bases in some organisms.
|
Organism and the tissue from which DNA is extracted |
Composition of DNA base (%) | |||
| Adenine | Guanine | Cytosine | Thymine | |
| Herring sperm | 27.8 | 22.2 | 22.6 | 27.5 |
| Rat bone marrow | 28.6 | 21.4 | 21.5 | 28.4 |
| Human sperm | 30.7 | 19.3 | 18.8 | 31.2 |
| Escherichia coli | 26.0 | 24.9 | 25.2 | 23.9 |
| Yeast | 31.3 | 18.7 | 17.1 | 32.9 |
Introduction:
In every organism, the genetic material is passed from one generation to another generation in the form of a code, which is present in DNA. The DNA is a double-helix structure, which contains purines and pyrimidines. The purines present in DNA are adenine and guanine and the pyrimidines are cytosine and 5-methyl uracil (thymine).
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Chapter 4 Solutions
Life: The Science of Biology
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