From: Haplotypes inside the beta-globin gene: use as new biomarkers for beta-thalassemia prenatal diagnosis in north of Iran
Haplotype
Codon 2
IVS2–16
IVS2–74
IVS2–81
IVS2–666
Frequency (%)
Frameworka
M1
C
G
T
63.91
Framework 1
M2
16.75
Framework 2
M3
11.74
Framework 3
M4
7.6
Framework 3a