Answer:
I think true. but dont quote me on it.
Explanation: I think true because of the right horn.
 
        
             
        
        
        
<span>Example of Trisomy 21 detected</span>... <span>the presence , which is found in Down syndrome, is calledtrisomy 21.</span> ... <span>Of these, Trisomy 21 and Trisomy 18 are the most common.</span> ... <span>XXX (Triple X syndrome); XXY (Klinefelter syndrome); XYY</span> ... <span>Turner syndrome (XO).   
so i think all are right</span>
        
             
        
        
        
Because chromosome X carries these genes which lead To catch these diseases.
males catch these disease more than females because they have 1. chromosome X but females has 2 .
so the Recessive trait appear in males more than females .
        
             
        
        
        
The genotype for both parents is Br. if using B= black and r = red