Practice Test on Prokaryotic and Eukaryotic Transcription | Molecular Biology

1.Which statement is not true for DNA transcription?
Template strand and mRNA have complementary sequences
Template strand is used as coding strand
template strand is termed as sense strand
Transcription is in 5'->3' direction

2. All of the following statements about bacterial transcription termination are true EXCEPT
Some terminator sequences require Rho Protein for termination
Inverted repeat and T rich non template strand define intrinsic terminators
Rho -dependent terminators may possess inverted repeat elements Rho
Nus A is neccessary for intrinsic transciption termination

3.Which of the following ensures stable binding of RNA polymerase at the promoter site?
DNA photolyase
DNA glycosylase
Rec A
sigma factor

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4.In eukaryotes, precursors of micro RNAs (miRNAs) and small interferng (siRNAs) are usually synthesized by
Only RNA Pol I
Only RNA Pol II
RNA Pol I and III, respectively
RNA Pol III and I, respectively

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5.Regulatory elements for expression of ribosomal RNA genes resides in the

transcribed spacer region
non-transcribe spacer region
5' flanking region of the individual ribosomal genes
internal regions within the genes

Score =
Correct answers:

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