If a double-stranded DNA molecule contains 30 percent T, it must contain _______ percent G.
A) 20
B) 30
C) 40
D) 50
E) 60

Name: If a double-stranded DNA molecule contains 30 percent T, it must contain _______ percent G. A) 20 B) 30 C) 40 D) 50 E) 60
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Quizplus · Accepted Answer

In DNA, the amount of adenine (A) equals thymine (T), and the amount of guanine (G) equals cytosine (C). If T is 30%, then A is also 30%, totaling 60% for A and T. This leaves 40% for G and C combined, so G must be 20%.

If a Double-Stranded DNA Molecule Contains 30 Percent T, It