An analysis is performed to determine the proportions of each of the four nucleotide bases in the DNA of several tissue samp from various species. The results appear in the table. Human Chicken Yeast E. coli % Adenine % Guanine (A) (G) 31 20 28 21 18 25 32 26 % Thymine % Cytosine (T) (C) 30 19 29 22 33 17 24 25 Which conclusions can be drawn from this data? The proportion of G is roughly equal to the proportion of C. The proportion of A is roughly equal to the proportion of T. The proportion of pyrimidines is roughly equal to the proportion of purines. The proportion of A-T base pairs is roughly equal to the proportion of G-C base pairs.

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
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An analysis is performed to determine the proportions of each of the four nucleotide bases in the DNA of several tissue samples
from various species. The results appear in the table.
Human
Chicken
Yeast
E. coli
% Adenine % Guanine
(A)
(G)
31
20
28
21
32
18
26
25
% Thymine % Cytosine
(T)
30
29
33
24
Which conclusions can be drawn from this data?
(C)
19
22
17
25
The proportion of G is roughly equal to the proportion of C.
The proportion of A is roughly equal to the proportion of T.
The proportion of pyrimidines is roughly equal to the proportion of purines.
The proportion of A-T base pairs is roughly equal to the proportion of G-C base pairs.
Transcribed Image Text:An analysis is performed to determine the proportions of each of the four nucleotide bases in the DNA of several tissue samples from various species. The results appear in the table. Human Chicken Yeast E. coli % Adenine % Guanine (A) (G) 31 20 28 21 32 18 26 25 % Thymine % Cytosine (T) 30 29 33 24 Which conclusions can be drawn from this data? (C) 19 22 17 25 The proportion of G is roughly equal to the proportion of C. The proportion of A is roughly equal to the proportion of T. The proportion of pyrimidines is roughly equal to the proportion of purines. The proportion of A-T base pairs is roughly equal to the proportion of G-C base pairs.
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