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                | 11. | Law of dominance was given by: |  
                | 
			 
				
					
				| A. | Mendel | B. | Weismann |  
				 				 | C. | de Vries | D. | Darwin |  
                        
                        
                            Answer: Option A Explanation:    |  
 
            
            
                | 12. | Who observed sperms for the first time? |  
                | 
			 
				
					
				| A. | Graff | B. | Leeuwenhock |  
				 				 | C. | Swammerdon | D. | None of these |  
                        
                        
                            Answer: Option B Explanation:    |  
 
            
            
                | 13. | Who discovered the ova for the first time: |  
                | 
			 
				
					
				| A. | Graff | B. | Malpighi |  
				 				 | C. | Swammerdon | D. | All of these |  
                        
                        
                            Answer: Option D Explanation:    |  
 
            
            
                | 14. | The worker who studied experimentally and proposed the laws of heredity was: |  
                | 
			 
				
					
				| A. | Muller | B. | Morgan |  
				 				 | C. | Maipighi | D. | Mendel |  
                        
                        
                            Answer: Option D Explanation:    |  
 
            
            
                | 15. | Unit factor term for controlling characters of individuals was given by: |  
                | 
			 
				
					
				| A. | Mendel | B. | Morgan |  
				 				 | C. | Malpighi | D. | None of these |  
                        
                        
                            Answer: Option A Explanation:    |  
 
            
            
                | 16. | Mendel selected which of the following traits for his studies: |  
                | 
			 
				
					
				| A. | Stem length (tall or dwarf), flower position (apical or axial) | B. | Flower colour (purple or white), seed shape (round or wrinkled) |  
				 				 | C. | Colour of pod (green or yellow), cotyledon colour (yellow or green) | D. | All of these |  
                        
                        
                            Answer: Option D Explanation:    |  
 
            
            
                | 17. | Which of these characters is dominant: |  
                | 
			 
				
					
				| A. | Axial position of flowers | B. | Apical position of flowers |  
				 				 | C. | Green colour of cotyledons | D. | Wrinkled shape of seeds |  
                        
                        
                            Answer: Option A Explanation:    |  
 
            
            
                | 18. | If a tall plant is crossed with a dwarf plant the cross is called: |  
                | 
			 
				
					
				| A. | Test cross | B. | Backcross |  
				 				 | C. | Green colour of cotyledons | D. | Wrinkled shape of seeds |  
                        
                        
                            Answer: Option C Explanation:    |  
 
            
            
                | 19. | If a genotype is not known it is crossed with recessive parent to reveal what is hidden then the cross is known as: |  
                | 
			 
				
					
				| A. | Backcross | B. | Monohydrid cross |  
				 				 | C. | Test cross | D. | Dihybrid cross |  
                        
                        
                            Answer: Option C Explanation:    |  
 
            
            
                | 20. | Who formulated chromosomal theory of inheritance: |  
                | 
			 
				
					
				| A. | Sutton | B. | Morgan |  
				 				 | C. | Bateson | D. | Johannsen |  
                        
                        
                            Answer: Option A Explanation:    |  
 
 
			
			
 
 
 
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