English
全部
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
搜索
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
Nature
6 年
The lactose operon of Escherichia coli.
The operon is regulated by Lac repressor, the product of the lacI gene, which is transcribed from its own promoter (PI). The repressor inhibits transcription by binding to the lac operator (O).
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
Agrees to limited ceasefire
On judicial impeachment call
Reinstating fired workers
Parents on missing daughter
Removing privacy setting
Worker stole $1.6 million
Ordered to pay $54K+
WH says US won't return
Trump revokes protection
Earthquake shakes Bay Area
Producer files for bankruptcy
Delta plane wing hits runway
Texas midwife arrested
DOGE gains access to USIP?
Honduras plane crash
US retail sales rebound
Stuck astronauts depart ISS
'Get Together' singer dies
Peru declares emergency
DC drops Jan. 6 lawsuit
Visits White House
Ex-Texas pastor surrenders
Lunar lander goes silent
Halts care for trans veterans
Judge demands answers
Tapped as top bank cop
Fire danger continues for OK
JFK files to be released
Lebanon-Syria ceasefire
Acquires AI video startup
Bryan Bedford to lead FAA
反馈