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Transcription and Regulation

Transcription and Regulation
Each tRNA molecule has a cloverleaf secondary structure consisting of

either (a) or (b)
two stem loops
four stem loops
three stem loops

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Transcription and Regulation
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

RNA polymerase II
RNA polymerase I
RNA polymerase III
none of these

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Transcription and Regulation
Which of the following is necessary for transcription to occur?

RNA polymerase
DNA polymerase
DNA molecule
Both DNA & RNA polymerase

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Transcription and Regulation
Enhancers are regions that

are adjacent to the TATA box
modulate transcription
are CAT box binding proteins
bind RNA polymerase

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

uncompetitive inhibition of an enzyme
allosteric effects in enzyme regulation
mixed-type inhibition of an enzyme
competitive inhibition of an enzyme

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Transcription and Regulation
The nucleons of eukaryotic cell has

RNA polymerase III
all of these
RNA polymerase II
RNA polymerase I

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