Specific primers were designed for MSX1 and PAX9 respectively. Mutation analysis was performed by direct sequencing of all the coding exons and intron-exon boundaries.
分别设计MSX1、PAX9基因特异性引物，聚合酶链反应扩增全部外显子编码区和内含子-外显子剪接序列，产物纯化后直接测序。
The introns are cut out by processing enzymes in the nucleus and the exons (coding sequences) ligated together.
核内的加工酶切下内含子，同时外显子(编码序列)连接在一起。
The introns are cut out by processing enzymes in the nucleus and the exons(coding sequences)ligated together.
内 的加工酶切下内含子，同时外显子（编码序列）连接在一起。
The introns are cut out by processing enzymes in the nucleus and the exons(coding sequences)ligated together.
内 的加工酶切下内含子，同时外显子（编码序列）连接在一起。
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