The following sequence logo represents the preferred cis-regulatory sequences of an imaginary transcription regulator that functions as a dimer. Would you expect this sequence to be recognized by a homodimer (M) or a heterodimer (T)? Write down M or T as your answer.

Question

Quizplus · Accepted Answer

Homodimeric transcription regulators typically have a symmetrical arrangement which is reflected in their target DNA sequence in the form of an inverted repeat. The sequence logo shown is not in agreement with an inverted repeat, or even a direct repeat; the DNA is therefore expected to be recognized by a heterodimer.

The Following Sequence Logo Represents the Preferred Cis-Regulatory Sequences of an Imaginary