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s0uptv
The observed the pairing under a microscope!
hope this helps, Castonmehi! :)
IsJixo
Their model of the DNA molecule showed that the hydrogen bonds could create a nearly perfect fit between nitrogenous bases along the center of the molecule. But the bonds could only form between adenine and thymine, and between cytosine and guanine.So it would be Option D.
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please mark brainliest