A:合成编码目的肽的DNA片段
B:构建含目的肽DNA片段的表达载体
C:依据P1氨基酸序列设计多条模拟肽
D:筛选出具有优良活性的模拟肽作为目的肽
如图所示,当动圈式话筒工作时,声音使得膜片____,与膜片相连的线圈跟着做切割 ____ 运动产生感应电流,这就是 ____ 现象.
A
Ping-pong Club
Do you like to play ping-pong? Do you want to play ping-pong well? Mr. Cai can teach you. You can come here every Saturday afternoon.
Tel: 368-5788
Add: Room 212 in School's PE Building.
Musicians Wanted
Are you a music lover? Can you sing or dance? Can you play the guitar? Can you play the violin? Welcome to our Star Rock Band. Please call Tina at 898-3343 from Monday to Friday (8:30-11:00 am). We will meet every Sunday morning.