序列操作套件 SMS2：
DNA 分子量
计算 DNA 序列的分子量，可选双链/单链、线状/环状。
载入示例数据
填充示例序列，方便快速体验
Paste the raw sequence or one or more FASTA sequences into the text area below. Input limit is 200,000,000 characters.
>Sample sequence 1 garkbdctymvhu >Sample sequence 2 ctymvhgarkbda >Sample sequence 3 ccccccccccga
Treat sequences as
single
double
stranded
linear
circular
molecules.