例句與造句

1. The "'Influenza virus pseudoknot "'is an RNA pseudoknot coding segments ( NS ) of influenza virus genome.
2. The frameshift that generates ORF1b frameshift occurs at a UUUAAAC heptanucleotide'slippery'sequence located upstream of the ORF1a stop codon and a putative RNA pseudoknot structure.
3. It's difficult to find rna pseudoknot in a sentence. 用rna pseudoknot造句挺難的