名词 exon:

1. sequence of a gene's DNA that transcribes into protein structures

exonn.编码顺序；外显子exonephric有外肾的exonerativeadj.释罪的；免罪的；免除的exonucleasen.[生化]核酸外切酶exonerationn.免罪；免除exon theory外显子学说exonormative语言规范外的exon shuffle外显子调动, 外显子改组, 外显子组排exon sliding外显子滑动exon trapping外显子截留exon exchange外显子互换

1. The next three exons code for each of the external domains.
   其后的三个外显子编码三个外周结构域。
2. In the process, some of the exons are retained while others are excluded.
   在此过程中，某些外显子保留了下来，某些则被排除。