Answer:
a) Genes b and c are farthest apart.
Explanation:
Transformation occurs when a competent bacteria cell takes up genetic material from the environment. Usually a donor cell donates its gene fragment  which is then incorporated into the chromosome or plasmid of recipient bacterial cell. 
Cotransformation occurs when two genes are taken up together by the recipient. The closer the genes lie to each other, more are the chances of them being taken up together. Contransformation frequency will be higher if two genes are close to each other. Here, cotransformation frequencies between three genes are given. Amongst them, the lowest frequency is 0.0064% which is present between gene b and c. Hence, gene b and c are the farthest apart. 
 
        
             
        
        
        
Answer:
C) chlorophyll ® thylakoid ® grana ® chloroplast
Explanation:
 
        
                    
             
        
        
        
Answer:
the answer, you can select it and write it down
 
        
                    
             
        
        
        
Inner core, outer core, mantle and crust
        
                    
             
        
        
        
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