(biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information;
发音
例句
1. DNA is stored in the nucleus of a cell. 脱氧核糖核酸储存于细胞的细胞核里。 2. Gene mutations are alterations in the DNA code. 基因突变是指DNA密码的改变。