14
practice testMultiple Choice

Practice Test

Question 14 • Biology

Photo 51 is a picture of the structure of DNA that was used to create a model of DNA. Who created the photo?

Answer
A
Erwin Chargaff
B
Friedrich Miescher
C
Rosalind Franklin
D
James Watson and Francis Crick

Explanation

Photo 51 was an X-ray diffraction image of DNA made by Rosalind Franklin and her student Raymond Gosling. The image provided important evidence about DNA’s helical structure, which helped Watson and Crick build their model. Therefore, the correct choice is Rosalind Franklin.

AI-written and checked against the verified answer.

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