Biology · PYQ NEET UG 2019(1)

Under which of the following conditions will there be no change in the reading frame of following mRNA? \( 5'\text{-AACAGCGGUGCUAUU-}3' \)

1. Insertion of A and G at \( 4^{\text{th}} \) and \( 5^{\text{th}} \) positions respectively
2. Deletion of GGU from \( 7^{\text{th}}, 8^{\text{th}} \) and \( 9^{\text{th}} \) positions
3. Insertion of G at \( 5^{\text{th}} \) position
4. Deletion of G from \( 5^{\text{th}} \) position