A DNA fragment contains 12 nucleotides. What | vedclass

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(B) According to $Chargaff's$ rule,in a double-stranded $DNA$ molecule,the amount of purines is equal to the amount of pyrimidines.Since the $DNA$ fra

Vedclass · Accepted Answer

Purine = $6$,Pyrimidine = $6$

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(B) According to $Chargaff's$ rule,in a double-stranded $DNA$ molecule,the amount of purines is equal to the amount of pyrimidines.Since the $DNA$ fragment has $12$ nucleotides,it consists of $6$ base pairs.In a double-stranded $DNA$ structure,each base pair consists of one purine and one pyrimidine.Therefore,the total number of purines is $6$ and the total number of pyrimidines is $6$.

$A$ $DNA$ fragment contains $12$ nucleotides. What is the ratio of purine and pyrimidine nitrogenous bases in it?

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