Which of the following investigators was (were) responsible for determining that DNA contains equal amounts of adenine and thymine, and equal amounts of guanine and cytosine?
A) Alfred Hershey and Martha Chase
B) Oswald Avery, Maclyn McCarty, and Colin MacLeod
C) Erwin Chargaff
D) Matthew Meselson and Franklin Stahl

Question

Quizplus · Accepted Answer

Erwin Chargaff discovered the base pairing rules, which state that in DNA, the amount of adenine (A) equals the amount of thymine (T), and the amount of guanine (G) equals the amount of cytosine (C). This finding was crucial for the later development of the double helix model of DNA by Watson and Crick.

Which of the Following Investigators Was (Were) Responsible for Determining