 
			 
			MCQOPTIONS
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				| 1. | Which of the following is true about lethal mutation? | 
| A. | It is brought about by destruction of a single molecule | 
| B. | It is brought about by inhibition of enzyme activity | 
| C. | Neither of the mentioned | 
| D. | None of the mentioned | 
| Answer» B. It is brought about by inhibition of enzyme activity | |