B-DNA which is right-handed double helix contains base pairs per turn of the helix and each turn is long.

Question

B-DNA which is right-handed double helix contains base pairs per turn of the helix and each turn is long. (A) 10, 3.4 mathringA (B) 10, 34 mathringA (C) 11, 20 mathringA (D) 11, 34 mathringA

Tardigrade Admin · Accepted Answer

In B-DNA, one turn of the helix has about 10 nucleotides on each strand of DNA. A turn occupies a distance of about 3.4 nm (34 mathringA or 3.4 × 10-9 m) so that adjacent nucleotides or their bases are separated by a space of about 0.34 nm (0.34 × 10-9 m or 3.4 mathringA).

Q. $B - D N A$ which is right-handed double helix contains base pairs per turn of the helix and each turn is long.

$10$ , $3.4 \overset{˚}{A}$

$10$ , $34 \overset{˚}{A}$

$11$ , $20 \overset{˚}{A}$

$11$ , $34 \overset{˚}{A}$

Q. B−DNA which is right-handed double helix contains ____ base pairs per turn of the helix and each turn is ____ long.

10, 3.4A˚

10, 34A˚

11, 20A˚

11, 34A˚

In B−DNA, one turn of the helix has about 10 nucleotides on each strand of DNA. A turn occupies a distance of about 3.4nm (34A˚ or 3.4×10−9m) so that adjacent nucleotides or their bases are separated by a space of about 0.34nm(0.34×10−9m or 3.4A˚).

Q. $B - D N A$ which is right-handed double helix contains base pairs per turn of the helix and each turn is long.

$10$ , $3.4 \overset{˚}{A}$

$10$ , $34 \overset{˚}{A}$

$11$ , $20 \overset{˚}{A}$

$11$ , $34 \overset{˚}{A}$