9
QuizMultiple Choice

Genetic Code — Quiz

Question 9 • Biology

In 1953, who developed this model? Expand Image

Answer
A
James Watson and Francis Crick
B
Erwin Chargaff
C
Rosalind Franklin
D
Marshall Nirenberg and Heinrich Matthaei

Explanation

James Watson and Francis Crick proposed the double-helix model of DNA in 1953. Chargaff’s research revealed important patterns in DNA bases, and Rosalind Franklin’s X-ray images helped inform the model, but Watson and Crick developed it. Nirenberg and Matthaei later helped decipher the genetic code.

AI-written and checked against the verified answer.

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