| Table 1. Proteinase K digestion time on mouse tissue. | |
| AGE (embryonic day) | TIME (minutes) |
| E8.5 | 6 |
| E9.5 | 10 |
| E10.5 | 13 |
| E11.5 | 15 |
| E12.5 | 17 |
| E14.5 | 18 |
| E16.5+ | 20+ |
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