How many adenines does the TATA box consist of, in total?

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Solution

The correct option is D 6
There are only two adenine bases after the characteristic TATA sequence (TATAAA) making the total number of adenine bases, 4. But the TATA box comprises of both the strands of DNA and the complementary strand has two adenines as well (ATATTT). This makes the total number of adenines in the whole TATA box, 6.

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