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The genetics of Haemoglobinopathies and G6PD deficiency. How do these diseases confer resistance to malaria species?

Sickle cell disease is a group of inherited disorders associated with finding of predominantly haemoglobin S (HbS) or HbS along with other β-globin gene variants such as HbC. Normal human haemoglobin consists of two α-globin ch...


Colour blindness and gender

Colour blindness occurs in around 8% of the male European population, and around 0.5% of female Europeans. This inequality is due to the association of colour blindness with the X chromosome. Humans see colour using three diff...


What is X-inactivation and why is it important?

X-inactivation is a process that occurs in the nuclei of all female mammals, due to them having two X chromosomes. Two X chromosomes is more than is really necessary in the mammal genome, as evidenced by the fact that 50% of the p...


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