$i. r-RNA$ 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.
| Column $– I$ | Column $– II$ |
| $(A)\; AUG$ | $(1)$ Phenyl alanine |
| $(B) \;UAA$ | $(2)$ Methionine |
| $(C)\;UUU$ | $(3)$ Tryptophan |
| $(D) \;UGG$ | $(4)$ Stop |