In double helix model of DNA, how far is each base pair from the next base pair?

Question

In double helix model of DNA, how far is each base pair from the next base pair? (A) 3.4 nm (B) 0.34 nm (C) 20 nm (D) 34 nm

Tardigrade Admin · Accepted Answer

The two chains are coiled in a right-handed fashion The pitch of the helix is 3.4 nm (a nanometre is one billionth of a metre, that is 10-9 m) and there are roughly 10 bp in each turn. Consequently, the distance between a bp in a helix is approximately equal to 0.34 nm

Q. In double helix model of DNA, how far is each base pair from the next base pair?

$3.4 nm$

$0.34 nm$

$20 nm$

$34 nm$

The two chains are coiled in a right-handed fashion The pitch of the helix is $3.4 nm$ (a nanometre is one billionth of a metre, that is $1 0^{- 9} m)$ and there are roughly $10 b p$ in each turn. Consequently, the distance between a bp in a helix is approximately equal to $0.34 nm$

Q. In double helix model of DNA, how far is each base pair from the next base pair?

3.4nm

0.34nm

20nm

34nm

The two chains are coiled in a right-handed fashion The pitch of the helix is 3.4nm (a nanometre is one billionth of a metre, that is 10−9m) and there are roughly 10bp in each turn. Consequently, the distance between a bp in a helix is approximately equal to 0.34nm

$3.4 nm$

$0.34 nm$

$20 nm$

$34 nm$

The two chains are coiled in a right-handed fashion The pitch of the helix is $3.4 nm$ (a nanometre is one billionth of a metre, that is $1 0^{- 9} m)$ and there are roughly $10 b p$ in each turn. Consequently, the distance between a bp in a helix is approximately equal to $0.34 nm$