Inside each of those cells is a tiny ropelike structure known as DNA (deoxyribonucleic acid). It stores most of the information needed to build your entire body.
غَيْرَ أَنَّ ٱلْغِرَامَ ٱلْوَاحِدَ مِنَ ٱلدَّنَا يَتَضَمَّنُ مَعْلُومَاتٍ تَمْلَأُ تِرِيلْيُونَ أُسْطُوَانَةٍ مُتَرَاصَّةٍ .‏