【单选题】A lysogenic bacterium ( ).
B.
Causes lysis of other bacteria on contact.
C.
Cannot support the replication of a virulent phage
D.
Is often a human pathogen
E.
Is usually not capable of conjugal genetic transfer
【判断题】地面干净清洁,无果皮纸屑、积水积尘等死角。
【单选题】We will be shown around the city: schools,museums,and some other places,______ other visitors seldom go. [ ]
【多选题】What are wrong statements with respect to lysogen and prophage.
A.
If there is only growth of few lysogens, the E. coli lawn would be turbid
B.
The integrated phage is called as lysogen
C.
The infected bacterial cell is called a prophage
D.
If lysogens won’t be formed, the plaques won’t be clear
【单选题】We will be shown around the ciry: schools, museums, and some other places, _____ other visitors seldom go. [ ]
【判断题】一笔经济业务的发生会引起一项资产的增加和一项负债的减少。
【简答题】A.offices B.schools C.cities D.places
【判断题】EDTA配位滴定时的酸度,根据lgcMK'MY≥6就可以确定。