It's usually d,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
        
             
        
        
        
Answer:
c. A bacterial cell that lacked receptors on its surface for that antibiotic
Explanation:
If the bacteria lacks the receptors on its surface meant for that antibiotic then it will be best defense for the survival of that bacteria. It is receptors which interact with the antibiotic so as to permit it inside the cell. Therefore, in the absence of receptors, it doesn't matter how much antibiotic is lying in the external environment of that bacteria, the antibiotic will not be able to enter the bacterial cell to kill it. Hence, the bacteria will be able to survive easily.
 
        
                    
             
        
        
        
Answer:
frequency of the blue (B) allele 
frequency of the red (R) allele 
The number of blue plants expected is 
The number of red plants expected is 
The anticipated number of violet plants is 
Calculated chi square value 
 
Explanation:
Frequency of blue allele is 
Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

Frequency of other allele 

Chi Square test 
See the attached file 
The number of blue plants expected is 
The number of red plants expected is 
The anticipated number of violet plants is 
Calculated chi square value 
 
 
        
             
        
        
        
Matrix are within the inner membrane of the mitochondria.