In the structure of $DNA$,which bond connects $Adenine$ with $Thymine$?

In sea urchin $DNA$,which is double stranded,$17\%$ of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this $DNA$ are

What is deoxyribonucleic acid $(DNA)$?

If the distance between two consecutive base pairs in a $DNA$ molecule is $0.34 \ nm$ and the total number of base pairs in a typical mammalian cell is $6.6 \times 10^9 \ bp$,what is the approximate length of the $DNA$ (in $m$)?

Who proposed the double helix model of $DNA$?

What is the molecular formula of the sugar present in the structure of $DNA$?