Assertion (S): DNA structure contains A-T com | vedclass

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(B) Assertion $(S)$ is true because in $DNA$,Adenine $(A)$ always pairs with Thymine $(T)$ via two hydrogen bonds.Reason $(R)$ is also true because $D

Vedclass · Accepted Answer

$S$ and $R$ are both true,but $R$ is not the correct explanation of $S$.

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(B) Assertion $(S)$ is true because in $DNA$,Adenine $(A)$ always pairs with Thymine $(T)$ via two hydrogen bonds.Reason $(R)$ is also true because $DNA$ contains Thymine instead of Uracil,which is found in $RNA$.However,the reason why $A$ pairs with $T$ is due to the specific chemical structure and hydrogen bonding capacity of these bases,not simply because $DNA$ lacks uracil. Therefore,$R$ is not the direct explanation for $S$.

Assertion $(S)$: $DNA$ structure contains $A-T$ complementary base pairing.
Reason $(R)$: $DNA$ structure does not contain uracil.

Similar Questions

Which of the following are the complementary base pairs found in the structure of $DNA$?

Select the incorrect match with respect to genetic material.

The linkage between two nucleotides occurs between the $3'$ carbon of the sugar of the first nucleotide and the $5'$ carbon of the sugar of the second nucleotide. Which of the following correctly represents these positions?

If Adenine makes $30\%$ of the $DNA$ molecule,what will be the percentage of Thymine,Guanine,and Cytosine in it?

What is the number of hydrogen bonds in a $DNA$ fragment containing only $5$ guanine nitrogen bases?

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Assertion $(S)$: $DNA$ structure contains $A-T$ complementary base pairing.Reason $(R)$: $DNA$ structure does not contain uracil.