What is the twist on a piece of relaxed Z-DNA that is 9,600 base pairs long?

Question

Quizplus · Accepted Answer

The number of base pairs in a complete turn of Z-DNA is 12, so the twist can be calculated by dividing the number of base pairs by 12 and multiplying by 360 degrees. In this case, (9,600/12) x 360 = 28,800 degrees. To convert this to a value between -180 and 180 degrees, we divide by 360 and take the remainder, which is 240 degrees. However, we also need to consider the handedness of the twist, which can be either right-handed (positive) or left-handed (negative). Since Z-DNA typically has a left-handed twist, we take the negative value, giving us a twist of -960 degrees.

What Is the Twist on a Piece of Relaxed Z-DNA