The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by ________.
A) Watson and Crick
B) Franklin
C) Pauling
D) Chargaff

Question

Quizplus · Accepted Answer

This idea was first proposed by Erwin Chargaff, who observed that the amounts of adenine and thymine in DNA were always equal, as were the amounts of guanine and cytosine. This observation is known as Chargaff's Rule. Watson and Crick later used this information, as well as data from Rosalind Franklin, to construct their model of the DNA double helix. Pauling also made contributions to our understanding of DNA structure, but his proposed triple helix model was ultimately incorrect.

The Idea That the Adenine and Thymine Bases of the DNA