题目内容

Which of the following statements about DNA is false?下列关于dna的陈述是假的吗？

A. DNA is located in the nucleus.
B. DNA is double-stranded.
C. DNA contains base triplets.
DNA binds to ribosomes.
E. DNA is required for transcription.

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The subunits of the ribosome are:核糖体的亚基是：

A. produced in the nucleolus.
B. produced in the cytoplasm.
C. the site of transcription.
D. where RNA polymerase is located.
E. produced in areas of euchromatin.

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Connexons form a passageway between cells which allow communication to occur. Connexons在细胞间形成通道，使通信得以发生。

A. TRUE
B. FALSE

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Connexons are found in tight junctions. Connexons是在紧密的连接处被发现的。

A. TRUE
B. FALSE

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Desmosomes function to keep cells from pulling apart therefore enabling resistance to mechanical stress.Desmosomes的作用是保持细胞的分离，从而对机械应力有抵抗力。

A. TRUE
B. FALSE

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Which of the following statements about DNA is false?下列关于dna的陈述是假的吗？

A. DNA is located in the nucleus. B. DNA is double-stranded. C. DNA contains base triplets. DNA binds to ribosomes. E. DNA is required for transcription.

The subunits of the ribosome are:核糖体的亚基是：

Connexons form a passageway between cells which allow communication to occur. Connexons在细胞间形成通道，使通信得以发生。

Connexons are found in tight junctions. Connexons是在紧密的连接处被发现的。

Desmosomes function to keep cells from pulling apart therefore enabling resistance to mechanical stress.Desmosomes的作用是保持细胞的分离，从而对机械应力有抵抗力。

A. DNA is located in the nucleus.
B. DNA is double-stranded.
C. DNA contains base triplets.
DNA binds to ribosomes.
E. DNA is required for transcription.