Maybe a person in a harmful neighborhood/ school/ house. this would be a cause to harmful health  
        
                    
             
        
        
        
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Genes are passed down, or inherited from a person’s parents.
A component called chromosome contains each gene’s instructions.
Any one of the 22 chromosomes that are not found on the X or Y chromosomes are called X-linked genes.
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Hope this helps and have a nice day!
<em>-KindnessMatters-</em>
 
        
             
        
        
        
Answer:
heyyyyyyyyyyyy  how you been :)
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Answer: Antiretroviral therapy is the use of HIV medicines to treat HIV infection.  ART helps people with HIV live longer, healthier lives and reduces the risk of HIV transmission.
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