Abshir Ahmed,52, has lived all his life along a stretch of the desert near the town of Docol, Scratching the bone-dry earth with his bare,calloused feet, Ahmed says the devastation that he and others are experiencing now is worse than anything they have ever been through before.
VOA: standard.2009.10.06
Every cell in your body has exactly the same DNA; that is if I could stretch out all the DNA and look at the base pair sequence, the sequences of bases along all the DNA in your chromosomes, they'd be identical in all the cells.
身体内每一个细胞都有完全相同的DNA,如果我把整条DNA展开,然后检查其碱基对的顺序,你体内每个细胞中染色体上,DNA的碱基对顺序,都是完全相同的
应用推荐