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【单选题】
The nuclear pore complex allows for ____A.
passive diffusion of small molecules
B.
import of proteins
C.
export of mRNA
D.
all of the above
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反馈参考答案：
举一反三
【单选题】在Windows2000家族中，运行于客户端的通常是________。
A.
Windows 2000 Server
B.
Windows 2000 Professional
C.
Windows 2000 Datacenter Server
D.
Windows 2000 Advance Server
【简答题】灯刷染色体(lampbrush chromosome)
【单选题】Which chromosome does not express the gene? ( )
A.
Lampbrush chromosomes.
B.
Metaphase chromosome.
C.
Multi line chromosome.
D.
None of them.
【简答题】染色体组(chromosome)
【简答题】人工染色体(artificial chromosome)
【单选题】The two daughter strands of a duplicated chromosome are each known as(a) ( ).
A.
synapse pair
B.
centromere
C.
chromatid
D.
homologous chromosome
【简答题】染色体骨架(chromosome scaffold)
【单选题】The basis of chromosome structural abnormalities is
A.
Sister chromatid exchange
B.
Chromosome lose
C.
Meiotic non-disjunction
D.
Mitotic non-disjunction
E.
Chromosome breaks and reunion at incorrect position
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