Fig. 1.

Unusually well-preserved mammoth M. primigenius DNA specimen obtained from permafrost-preserved remains found in 1986 in the valley of the Enmynveem River (Chukotka):

a - Fluorescence of nuclei in muscle cells of M. primigenius (~33, 000 years old) after DAPI staining indicates a relatively high degree of DNA preservation; b - electrophoresis of total genomic DNA extracted from mammoth muscle tissue (lane 1 is 1/10 dilution of the DNA on lane 2), and control DNA isolated from fresh human blood samples (lanes 3 and 4). The right lane is a DNA molecular weight marker (fragments sizes are indicated in kb) [13]