BIOCHEMISTRY QUESTIONS

The diagram below shows two amino acids  
   

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a   Draw the result of these two amino acids forming a dipeptide  
       
      (2)
b   Name the chemical reaction used to form the dipeptide  
      (1)
c   Name the type of bond which links the two amino acids in the dipeptide  
      (1)
d   State what the R shown in the amino acid diagrams refers to  
      (1)
e   Describe how you perform a biochemical test to identify proteins  
       
      (2)