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Fig. 1 | BMC Medical Genetics

Fig. 1

From: Development and validation of a high throughput, closed tube method for the determination of haemoglobin alpha gene (HBA1 and HBA2) numbers by gene ratio assay copy enumeration-PCR (GRACE-PCR)

Fig. 1

A schematic representation of the α-globin locus from the Haemoglobin Zeta (HBZ) to the Haemoglobin Theta 1 (HBQ1) gene. The approximate position of the gene deletions detected in the current study is shown. The location of amplicons targeting the HBA1 and HBA2 genes are indicated by the arrows A1 and A2, respectively. The CLCN7 gene is located approximately 1.3 million bases 3′ of the α-globin locus (not shown)

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