Who proposed that for a double-stranded text{ | vedclass

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(A) Erwin Chargaff proposed the base-pairing rules for $	ext{DNA}$ in $1950.$ He observed that in any double-stranded $	ext{DNA}$ molecule,the amoun

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Erwin Chargaff

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(A) Erwin Chargaff proposed the base-pairing rules for $	ext{DNA}$ in $1950.$ He observed that in any double-stranded $	ext{DNA}$ molecule,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 $(C)$. This leads to the ratios $\frac{A}{T} = 1$ and $\frac{G}{C} = 1,$ or $\frac{A+G}{T+C} = 1.$ These observations are known as Chargaff's rules.

Who proposed that for a double-stranded $\text{DNA},$ the ratios between Adenine and Thymine and Guanine and Cytosine are constant and equal to one?

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