Table 1.
Genotyping of Netrin-1 mutant allele from Netrin-1/Robo1/2 combined mutants
| Genotype | Netrin-1 labeling | β-gal labeling | Commissural axons in the spinal cord |
|---|---|---|---|
| Netrin-1+/+ | Yes | No | Yes |
| Netrin-1+/− | Yes | Yes | Yes |
| Netrin-1−/− | No | Yes | almost gone |
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