Which Statement Is True

question 125

Multiple Choice

Which statement is true?

• A) The hydrogen bonding of cytosine to guanine is an example of complementary base pairing.
• B) Adenine always pairs up with guanine in DNA, and cytosine always teams up with thymine.
• C) Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base.
• D) When adenine base pairs with thymine, they are linked by three hydrogen bonds.
• E) In the DNA of all species, the amount of cytosine never equals the amount of guanine.

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