Which scientist proposed the concept of the Central Dogma?

Genetic information is carried by a long chain,which is made up of ........

Define the following terms: Nucleoside and Histones.

Assertion: In a $DNA$ molecule,$A-T$ rich parts melt before $G-C$ rich parts.
Reason: In between $A$ and $T$ there are three $H-$ bonds,whereas in between $G$ and $C$ there are two $H-$ bonds.

The antiparallel strands in $DNA$ are the result of:

..............is common for both $DNA$ and $RNA$ but.............is present only in $DNA$.