Chargaff's first rule states that ____.
A)the amounts of adenine and thymine are identical in a DNA molecule
B)the DNA molecule is helical
C)the DNA molecule contains deoxyribose
D)the proportion of adenine and guanine differs between different species
E)DNA exhibits a repeating pattern every 0.34 nm

Question

Quizplus · Accepted Answer

Chargaff's first rule states that in DNA, the amount of adenine always matches the amount of thymine, and the amount of guanine always matches the amount of cytosine. This means that the proportion of A:T and G:C base pairs is always the same, and this is what allows the two strands of DNA to bind together through hydrogen bonds.

Chargaff's First Rule States That ____