The base components of DNA are:
a. A, G, C, and U.
b. P, G, C, and T.
c. A, G, C, and T.
d. X, XX, XY, and YY.
ANS: C
The four base components of DNA are cytosine, thymine, adenine, and guanine, and are com-monly represented by their first letters (A, C, T, and G) and not components identified as P or U. X, XX, XY, and YY are components of human chromosomes.
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