Yes: There are variations in the expression of Hb S gene and the depending on additional factors the percentage of Hb S in a person with the trait may vary from about 20-70%. The additional factor generally is beta thalassemia trait in the cis or trans position to the Hb S gene.
Answered 11/27/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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