Enzyme aminoacyl synthetase is responsible for
Initiating $mRNA$ synthesis
Charging $tRNA$ molecules
Combining $tRNA$ at $P$ site of $mRNA$
None of the above
A study of heredity and hereditary character is called as
In-vitro template independent $RNA$ synthesis is a feature of
The okazaki fragments in $DNA$ chain
The function of chromosomes of carrying the genetic information from one cell generation to another is performed by
Repetitive sequences are stretches of $DNA$ with repeated bases many times in a genome, but
$(a)$ These sequences are of no transcriptional function
$(b)$ These are associated with euchromatin region
$(c)$ These helps to identify a person on the basis of its $DNA$ specificity