Genotype

Now that "Genotype AA" is trending, now is a time to remind you to check your genotype if you haven't.

While pairing, remember this:

AA + AA = Right
AA + AS = Right
AA + SS = Right
AA + AC = Right
AS + AS = Wrong
AS + SS = Wrong
AS + AC = Wrong
AC + SS = Wrong
SS + SS = Wrong
SC + AS = Wrong 

About 5–7% of the people in the world has an abnormal Hb gene. One abnormal form is the Sickle Cell gene

The greatest burden of the disease is in sub-Saharan Africa and Nigeria has the highest rate in Sub Saharan Africa

Nigeria can well have the highest number of people with SS For those asking, the hemoglobin C gene is also an abnormal gene, just like the S gene

If a person inherits this gene from both parents that person will have Hemoglobin C disease

If the person inherits it from only one parent then the person has the Hemoglobin C trait(AC)
Sometimes it happens also one parent has the S gene, and the other has the C gene, the baby might inherit both and have the sickle cell Hemoglobin C disease (SC)

This disease has similar symptoms similar to sickle cell anemia or Hemoglobin C disease,also said to be less severe.
Content Credit @aproko_doctor
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