题目内容

The product of gene expression is ( )

A. DNA
B. RNA
C. protein
D. most are protein, some are RNA
E. enzyme and DNA

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The constitutive gene expression ( )

A. when there is inducer, expression will be higher
B. when there is inducer, expression will be lower
C. when there is repressor, expression will be higher
D. when there is repressor, expression will be lower
E. inducer and repressor have little effect on the expression

Most of the gene expression occur in the ( )

A. replication level
B. transcription level
C. transcription initiation
D. translation level
E. post-translational level

Cis-acting element is ( )

A. TATA box and CCAAT box
B. DNA sequences that have regulatory function
C. 5′flanking sequence
D. 3′flanking sequence
E. non-coding sequence

A complete set of genes of a given species called ( )

A. genome
B. gene
C. DNA
D. chromosome E. cDNA

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