Certain Protiens, amino acids form protiens
        
             
        
        
        
Answer:
An inversion
Explanation:
An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of the chromosome breaks.
 
        
             
        
        
        
Magnesium is the major mineral which is important for nerve and heart functions. It is a co-factor for over 300 enzymes. It is a major constituent of bone and is found in whole grains and vegetables. Sudden heart attacks may be due to the low level of magnesium. It can be obtained by consuming rice bran, sunflower seed, wheat barn and linseed meal. 
 
        
             
        
        
        
Answer:
according to your question the answer I end up getting is A=4 but it doesnt 
seem to be an option
Explanation:
maybe you typed it in wrong but it should be 4 
sorry if this does not help