The data presented by Erwin Chargaff suggested that:
Correct answer: D. Adenine and thymine are equal and so are cytosine and guanine
- A. Adenine and Guanine are equal
- B. Guanine and thymine are equal
- C. Adenine and cytosine are equal
- D. Adenine and thymine are equal and so are cytosine and guanine
Explanation
Chargaff's rules are fundamental to understanding DNA structure. His data showed that in DNA, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C). These findings were pivotal in uncovering the double helix structure of DNA. The incorrect options misrepresent these pairings: Option A incorrectly pairs adenine with guanine; Option B incorrectly pairs guanine with thymine; and Option C incorrectly pairs adenine with cytosine. Only Option D accurately reflects Chargaff's findings.
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