MCQ
The pitch of the $B-DNA$ is
- A$36\; Å$
- B$3.4 \;Å$
- ✓$34\; Å$
- D$3.6\; Å$
✓
Answer
Correct option: C.
$34\; Å$
c
In $B-DNA$, one turn of helical strand has $10$ nucleotides.
The base pairs of $DNA$ are stacked $3.4 \;Å$ part.
$\therefore$ Pitch of the $DNA = 3.4\; Å × 10 = 34\; Å$
In $B-DNA$, one turn of helical strand has $10$ nucleotides.
The base pairs of $DNA$ are stacked $3.4 \;Å$ part.
$\therefore$ Pitch of the $DNA = 3.4\; Å × 10 = 34\; Å$
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