Given below are two statements:Assertion (A): | vedclass

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(D) According to Chargaff's rule,in a double-stranded $DNA$ molecule,the amount of adenine $(A)$ is equal to the amount of thymine $(T)$,and the amoun

Vedclass · Accepted Answer

$A$ is incorrect but $R$ is correct.

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(D) According to Chargaff's rule,in a double-stranded $DNA$ 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 is because $A$ pairs with $T$ via two hydrogen bonds,and $G$ pairs with $C$ via three hydrogen bonds.Therefore,the Assertion $(A)$ is incorrect because hydrolysis of $DNA$ yields equal amounts of $A$ and $T$,and $G$ and $C$.The Reason $(R)$ is correct as it describes the base-pairing mechanism.Thus,the correct option is $D$.

Given below are two statements:
Assertion $(A)$: Hydrolysis of $DNA$ does not form equal number of $A$ and $T$; $G$ and $C$.
Reason $(R)$: In $DNA$,adenine forms hydrogen bonds with thymine and cytosine forms hydrogen bonds with guanine.
The correct answer is:

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Given below are two statements:Assertion $(A)$: Hydrolysis of $DNA$ does not form equal number of $A$ and $T$; $G$ and $C$.Reason $(R)$: In $DNA$,adenine forms hydrogen bonds with thymine and cytosine forms hydrogen bonds with guanine.The correct answer is: