Bio201 (13-06-23) Time: 09:00 AM MCQs: 1. Who discovered Nucleus--- Robert Brown 2. Beta pleated sheet is found in --- Secondary protein structure 3. DNA replication--- Semi- conservative model 4. Formation of NH3 is carried out at ------- temperature. 450-500 ?C 5. Which is not phase of interphase ------ phase G 0 6. Which one is a sex chromosome-- X 7. The observable feature in the subject of genetics called... All correct 8. Inhibitors that binds to active site ... Compitatative inhibitors 9. Membrane in mitochondria---- Cristae 10. Large subunits of ribosome has mRNA--- 3 Short Questions. 1. Role of protein 2. Physical barrier of enzyme regulation 3. Requirements of PCR Long question 1. Role of protein 2. Endocytosis Exocytosis pinocytosis 3. Messenger & Adopter Hypothesis