 
			 
			MCQOPTIONS
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				This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. | What drives the conformational change in the ribosome? | 
| A. | GTP hydrolysis | 
| B. | AMP hydrolysis | 
| C. | ATP hydrolysis | 
| D. | GDP hydrolysis | 
| Answer» B. AMP hydrolysis | |
| 2. | The first amino acid incorporated at the N-terminus of polypeptide is ___________________ | 
| A. | methionine | 
| B. | cysteine | 
| C. | tryptophan | 
| D. | valine | 
| Answer» B. cysteine | |
| 3. | Initiation factors are ______________________ | 
| A. | lipids | 
| B. | soluble proteins | 
| C. | lipopolysaccharides | 
| D. | phospholipids | 
| Answer» C. lipopolysaccharides | |
| 4. | Shine-Dalgarno sequence is present in the ____________________ | 
| A. | hnRNA | 
| B. | mRNA | 
| C. | tRNA | 
| D. | siRNA | 
| Answer» C. tRNA | |
| 5. | Which of the following is an initiation codon? | 
| A. | AAA | 
| B. | AUG | 
| C. | AGU | 
| D. | AGG | 
| Answer» C. AGU | |
| 6. | Which of the following moves in consecutive blocks of three nucleotides? | 
| A. | ribosome | 
| B. | ribozyme | 
| C. | polymerase | 
| D. | helicase | 
| Answer» B. ribozyme | |
| 7. | The synthesis of polypeptide can be divided into ______ distinct activities. | 
| A. | 1 | 
| B. | 2 | 
| C. | 3 | 
| D. | 4 | 
| Answer» D. 4 | |