Answer:
Deletion
Explanation:
Deletion is the act of a gene being removed from a chromosome, making it mutated.
 
        
             
        
        
        
Answer:
both options 4 and 3 is the answer..
 
        
             
        
        
        
Since all thoroughbreds have the same birthday — January 1 — the best bet for a racing horse is to raise so that the foal drops right after that date. This means the yearling at his first birthday is a five-year-old and from then on he is ahead of the game with a five year of maturation before each.
        
             
        
        
        
Answer: B and C 
Explanation: Both are below 6 on the scale so their not as hard or tough.
 
        
                    
             
        
        
        
All i know is 'hat, it is composed of three layers