Answer:
Mutation plays an important role in evolution. The ultimate source of all genetic variation is mutation. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.
 
        
             
        
        
        
Answer:
The complementary base pair is ATG  TTT   GTG   ATA TGG  CGC  ATT  TAC   TAA  
Explanation:
As per the complementary base pairing rule of DNA
C pairs with G and vice versa
A pairs with T (in DNA) or U (in RNA)
Breaking the given strand into triplets, we get - 
TAC  AAA  CAC  TAT  ACC  GCG  TAA  ATG  ATT
ATG  TTT   GTG   ATA TGG  CGC  ATT  TAC   TAA  
 
        
             
        
        
        
Builds protein is the correct answer