题目内容

有关核小体的叙述不正确的是()。

A. 核小体是染色质的结构单位
B. 核心部分由H2H2H3、H4各两分子组成
C. 由许多核小体进一步盘曲成中空的染色质纤维-螺线管
D. 真核细胞染色质DNA缠绕在组蛋白八聚体上形成核小体
E. 所有生物来源的核小体DNA长短是一致的

查看答案
更多问题

对于待开发的土地,其楼面单价等于()。

A. 土地总价/土地总建筑面积
B. 土地总价/土地总面积
C. 地面单价/规划容积率
D. 地面单价/规划建蔽率

简述自行申报纳税的纳税义务人有哪些。

You are managing an Oracle Database 11g database with the following backup strategy:1) On Sunday, an incremental level 0 tape backup is performed.2) Monday through Saturday, a cumulative incremental level 1 tape backup is performed. Which twostatements are true regarding the backups performed()

A. The backup performed in step 1 backs up all blocks that have ever been in use in the database.
B. The backup performed in step 2 copies all the blocks changed since the most recent level 0 backup.
C. The backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup.
D. The backup performed in step 2 backs up all blocks that have changed since the most recent incrementalbackup at level 1

简述多级浸出工艺过程。

答案查题题库