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Transcription and Regulation

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

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

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

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

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Transcription and Regulation
Transcription begins

at the start codon
none of these
downstream from the start codon
upstream from the start codon

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Transcription and Regulation
Immediately after transcription

a methylated guanine cap is added to the 31 end of the transcript
a poly adenylation signal is added
a methylated guanine cap is added to the 51 end of the transcript
both (a) and (b)

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Transcription and Regulation
RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________

replication, DNA polymerase
transcription, RNA polymerase
transcription, DNA polymerase
translation, RNA polymerase

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Transcription and Regulation
The complex of RNA polymerase, DNA template and new RNA transcript is called

none of these
a translation bubble
replication bubble
transcription bubble

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