The repeated sequence (AT)x(T)y upstream to the beta-globin gene is a simple polymorphism.
Galanello
R
R
Meloni
A
A
Gasperini
D
D
Saba
L
L
Cao
A
A
Rosatelli
M C
MC
Perseu
L
L
D001483:Base Sequence; D005914:Globins / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D011110:Polymorphism, Genetic; D012091:Repetitive Sequences, Nucleic Acid; D017086:beta-Thalassemia / Q000235:genetics
D005914:Globins