That information determined whether or not a string of rna was snipped .
这一信息决定某段核糖核酸（rna）是否被剪断。
But upon closer examination , the researchers also detected pieces of rna .
但是经过仔细的检测，研究人员还检测出核糖核酸（rna）片段。
Rathore used a new technique , called rna interference , to construct a genetic sequence that blocked the gossypol-producing enzyme in the seeds only .
Scientists thought that most rna in a cell was messenger rna generated by protein-coding genes , rna in ribosomes , or a sprinkling of other rna elsewhere .
Derrick rossi of harvard university has performed a similar trick using synthetic rna messenger molecules to mimic the activity of the genes in question .
