Match List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. Monocistronic gene	$I$. Coding sequence
$B$. Polycistronic gene	$II$. Intervening sequence
$C$. Exons	$III$. Mostly prokaryotes
$D$. Introns	$IV$. Mostly eukaryotes

• A
  $(A-IV), (B-III), (C-I), (D-II)$
• B
  $(A-III), (B-IV), (C-II), (D-I)$
• C
  $(A-II), (B-I), (C-III), (D-IV)$
• D
  $(A-I), (B-II), (C-IV), (D-III)$