单项选择题

肌动蛋白纤维对于黏着斑就像( )对于半桥粒。

A．肌球蛋白纤维
B．角蛋白纤维
C．微丝
D．钙粘着蛋白
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单项选择题
Developing frog embryos treated with anti-fibronectin antibodies
A．Develop normally.( )
B．Stop cell division.
C．Have abnormal cell migration(迁移).
D．Don't exhibit action potentials.
单项选择题
All of the following are true about antisense RNA except ( )
A．Is complementary to mRNA.
B．Forms double-stranded RNA.
C．Joins with the 30S subunit.
D．Inhibits protein synthesis.
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