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Question 21.5: The sequence of bases in a part of the DNA template strand i...

The sequence of bases in a part of the DNA template strand is 3′ C G A T C A 5′. What corresponding mRNA is produced?

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To form the mRNA, the bases in the DNA template are paired with their complementary bases: G with C, C with G, T with A, and A with U.

DNA template strand:                                                             3′    C    G    A    T    C    A    5′

                                                                                                                               Transcription           \downarrow    \downarrow    \downarrow   \downarrow    \downarrow    \downarrow

Complementary base sequence in mRNA:                     5′    G    C    U    A    G    U    3′

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