Which of the following statements are correct?

$i. r-RNA$ provides the template for synthesis of proteins.

$ii.$$ t-RNA$ brings amino acids and reads the genetic code.

$iii. $$RNA$ polymerase binds to promoter and initiates transcription.

$iv. $A segment of $DNA$ coding for polypeptide is called intron.

$DNA$ generally acts as template for the synthesis of

Full Forms :

$1.$ $\rm {DNA}$

$2.$ $\rm {RNA}$

$3.$ $\rm {hnRNA}$

$4.$ $\rm {UTR}$

Match the columns.

Gene controls