STPM Biology - chapter 1: Revision essay question 2

By drawing a clear labelled diagram, show the structure of a DNA molecule.  [4]

Label:

a. double helix

b. phosphate group

c. deoxyribose

d. correct base pairing, A=T, C≡G

e. distance between 2 base pairs = 0.34 nm 

f. distance between 10 basepairs = 1 complete turn = 3.4 nm

**No explanation needed.