主题:NASA发现由砷构成的新生命,推翻现有生物学理论 -- 尖石
”We then used high-resolution secondary ion mass spectrometry (NanoSIMS) to positively identify As in extracted, gel purified genomic DNA.
。。。。。
These measurements therefore specifically demonstrated that the purified DNA extracted from +As/-P cells contained As. Our NanoSIMS analyses, combined with the evidence for intracellular arsenic by ICP-MS and our radiolabeled 73AsO4 experiments demonstrated that intracellular AsO4(3-) was incorporated into key biomolecules, specifically DNA.“
- 相关回复 上下关系8
🙂有没有拓扑DNA双向电泳图? PBS 字0 2010-12-02 19:29:54
🙂好像没有。(这个可以没有?) 青颍路 字0 2010-12-02 19:35:24
🙂原核生物DNA闭环,可以通过拓扑电泳看清楚 2 PBS 字81 2010-12-02 19:40:21
🙂质谱是否更敏感,更确切?
🙂我奇怪他们如此重视原子层面的信息 2 酸酸 字122 2010-12-02 20:47:10
🙂搞核酸的一般喜欢用电泳,高级的用结晶 3 PBS 字409 2010-12-02 20:35:59
🙂标题有些不够科学 3 苏迅 字290 2010-12-02 18:01:32
🙂我看硅基生命不可能。 1 njyd 字156 2010-12-02 22:06:01