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SAT Biology Subject Test Practice Questions

Category - Biology

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The DNA sequence ATGCCTAGGTC is transcribed to what RNA sequence?

CTTGGATCCGTA
UACGGAUCCAG
TACGGATCCAG
CGTAAGCTTGA
UAGCCAUGGAC

Explanation

Answer: B, UACGGAUCCAG. Transcription is the process to produce RNA from the DNA template, with fixed base paring rules.

Key Takeaway: In transcription, A pairs with U, T with A, G with C, and C with G. RNA does not use thymine, so answers A, C, and D can be eliminated on that basis alone. A careful eye will observe that in E, G and C are being paired with each other.

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SAT Biology Subject Test Practice Questions

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