In RNA nitrogenous base thymine is replaced by
(a) adenine
(b) guanine
(c) uracil
(d) cytosine
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Answer:
Uracil
Explanation:
RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine.
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