i have heard the asthma can be genetic ...
I would say that depends. I have asthma, but it's allergy related. Allergy doc told me I should live in a plastic bubble. Others have asthma for different reasons. Do you have allergies? Do other family members? Could be a connection thee. My son also has severe allergies & asthma... mary
Because asthma may appear in families, not all members have it, grandparents or children do not, I think you are looking at the wrong concept. Any genetic markers would be a complex series of genes and not simple dominance or recessive traits. If it were it would be easily predictable and much despair would be averted. As it is, it is normally spontaneous and allergy related. These are environmentally determined as others have indicated, good thought though, in understanding the disease.
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