Answer:
Nucleotides make up DNA, or deoxyribonuleic acid.
Explanation:
 
        
                    
             
        
        
        
Answer:
Retinoblastoma is more common in people due to the mutation of RB gene in them.
Explanation:
Retinoblastoma is a disease that affects the eyes of an individual. It is more commonly eye cancer which occurs on the retina of the eye. Retinoblastoma mainly affects younger children. 
When the RB gene is mutated or it is deleted already on any one of a homologous chromosomes, then only one hit rather that two which is needed to cause the development of retinoblastoma and hence the probability is of retinoblastoma to occur is higher in the individuals who have already inherited the RB deletion and also have a genetic predisposition for the retinoblastoma.
 
        
             
        
        
        
This is a difficult question to answer with the given information...could you add more
        
             
        
        
        
It can't be as you should know what sapling it is ,if it is a herb sapling then it will a herb sapling and vicesa versa.