Scientists claim to have pinpointed the exact location of the metropolis under mud flats in southern spain .
科学家们声称已经准确的查明了这座曾经的大都会的具体位置，就在西班牙南部的海滩之下。
They pinpointed genetic variations that change amino acid building blocks in key proteins in the immune system .
他们确定，基因变异改变了免疫系统里关键蛋白成分中的氨基酸基本单位。
In the largest genetic studies yet of autism , a team from across the united states has pinpointed previously overlooked dna that predisposes children to the disorder .
