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If one strand of DNA has the nitrogenous base sequence of ATCTG, what would be the complementary RNA strand sequence?

1. TTAGU
2. UAGAC
3. AACTG
4. ATCGU

Correct answer: UAGAC

Solution

During transcription, RNA is built complementary to the DNA template strand. Applying the pairing rules to ATCTG gives UAGAC, which matches option B.

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