MCQ
Which ecosystem has the highest gross primary productivity
- ✓Rainforests
- BTundra
- CMangroves
- DGrass lands

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Statement\; 2$: This requires not two children per couple but a little more effort on reduction of this number
| List $I$ | List $II$ |
| $A$. Frederick Griffith | $I$. Genetic code |
| $B$. Francois Jacob and Jacque Monod | $II$. Semi-conservative mode of DNA replication |
| $C$. Har Gobind Khorana | $III$. Transformation |
| $D$. Meselson and Stahl | $IV$. Lac operon |
Choose the correct answer from the options given below: