Substitution i believe. There’s nothing deleted
        
             
        
        
        
Food is a basic need for all organisms
        
                    
             
        
        
        
Answer:
The mentioned case is an illustration of the missense mutation. A missense mutation is a kind of nonsynonymous substitution, that is, it is a mutation in which a variation in a solitary nucleotide leads to the formation of a codon, which encrypts for a distinct kind of amino acid.  
When a missense mutation takes place within a DNA, a modification in one of the RNA codon sequences results at the time of transcription. This change in codon will ultimately result in the formation of a different amino acid, which gets presented within a protein at the time of translation. Like in the given case, a change in codon resulted in the substitution of the amino acid tyrosine with an amino acid cysteine.  
 
        
             
        
        
        
the branch of science concerned with the chemical and physicochemical processes and substances that occur within living organisms.
 
        
                    
             
        
        
        
I know this answer but it is really commutated