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Genetic analysis of the amorphic foetuses and their full siblings
| Genes | ||||||
|---|---|---|---|---|---|---|
| Multiplets | Individuals | Karyotype | SRY | AMELX | AMELY | STR (17 loci) |
| Normal male (A-m) | 60, XY | + | + | + | The same genotype as A1 | |
| A | Ag -(A1) | + | + | + | The same genotype as co-twin | |
| Stillborn male | na* | na | na | na | na | |
| B | Stillborn male | na | na | na | na | na |
| Ag -(B1) | + | + | + | na | ||
| Normal male (C-m) | 60, XY | + | + | + | Genotype different from C-f, C1, and C2 | |
| Normal female (C-f) | 60, XX | − | + | − | The same genotype as C1 and C2 | |
| C | Ag -(C1) | − | + | − | The same genotype as C-f and C2 | |
| Ag-(C2) | − | + | − | The same genotype as C-f and C1 | ||