Uracil
Thymine
Cytosine
Guanine
Answer is Wrong!
Answer is Right!
The correct answer is A. Uracil.
Uracil is a nitrogenous base found in RNA, but not in DNA. It is complementary to adenine.
Thymine is a nitrogenous base found in DNA, but not in RNA. It is complementary to adenine.
Cytosine is a nitrogenous base found in both DNA and RNA. It is complementary to guanine.
Guanine
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