American researchers claim to have demonstrated that the skull fragment, secretly preserved for decades by Soviet intelligence, belonged to a woman under 40, whose identity is unknown.
Conclusion the four gene fragments were amplified from known genes involved in cell proliferation and differentiation, while the one unknown gene fragment maybe from a new functional leukemia gene.
结论四个基因片段为与细胞的增殖与分化相关的已知基因,有一个基因片段可能为新的功能性的白血病基因。
3
With availability of a fragment of target DNA sequence, flanking unknown DNA sequence was obtained rapidly by successive chromosome walk using Il-PCR method.