6
QuizMultiple Choice

Genetic Code

Question 6 • First Semester Biology

Which bases are found in a strand of DNA?

Answer
A
thymine, guanine, cytosine, uracil
B
guanine, cytosine, uracil, adenine
C
cytosine, glycine, adenine, thymine
D
adenine, thymine, guanine, cytosine

Explanation

DNA contains four bases: adenine, thymine, guanine, and cytosine. Uracil is found in RNA instead of thymine, and glycine is an amino acid, not a DNA base. Therefore, the correct choice is adenine, thymine, guanine, and cytosine.

AI-written and checked against the verified answer.

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