What structure is shown in the given figure?

In a double-stranded $DNA$,the sequence of base pairs in one strand is $AGCTAAGCC$. What is the complementary sequence on the other strand?

It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material. This is written by

The reason for the double helical structure of $DNA$ is the operation of

In the $DNA$ of an animal,the percentage of adenine is $30$. What would be the percentage of guanine?

Which one of the following can form a nucleotide of $DNA$?