Four short nucleotide sequences within introns serve as signals that indicate to the spliceosome where to cut [see box on opposite page].
Four short nucleotide sequences within introns serve as signals that indicate to the spliceosome where to cut [see box on opposite page].
在插入子的序列上，有四个简短的核苷酸序列，标示了剪接体下刀的位置（参见本页左方〈细胞的剪接机器〉）。