One of Chargaff's Rules Is _____.​

Multiple Choice

One of Chargaff's rules is _____.​

A) ​different organisms have different proportions of adenine and guanine
B) ​the DNA molecule is a double helix
C) ​the two strands in a DNA molecule run in opposite directions
D) ​the backbone of a DNA molecule is on the outside
E) ​the backbone of the DNA is comprised of alternating sugars and phosphates