introns

1.Like eukaryotes, but unlike bacteria, they have introns in their transfer RNA, but like bacteria they have polycistronic operons (gene regulators).

像真核生物而像，转运RNA中含有内含，还有具备的多顺反的操纵（基因的调控）。

2.Objective To verify the self-splicing function of the group Ⅰ introns ribozymes from Tetrahymena thermophilia and the site-specific mutagenesis ribozymes.

目的验证嗜热四膜虫核酶自我剪接功,诱变Ⅰ型内含核酶及检测其自我剪接功。

3.About 98.5% of the human genome has been designated as "junk", including most sequences within introns and most intergenic DNA.

大约98.5%的人类基因被指为“垃圾”，包括基因内区多数排序和大多数基因间的DNA。