Exam 16: Rna Processing: Other Post-Transcriptional Events

mRNA editing has been shown to occur in the 5' to 3' direction.

Post-transcriptional processing of RNA is not important for gene expression.

Select one of the choices below to indicate whether it is a characteristic of miRNA or siRNA. -Induces degradation of the target mRNA B

Gene silencing by RNAi can target the control region of a gene by being involved in DNA methylation.

The function of normally occurring mRNA deamination appears to be the proper

Select one of the choices below to indicate whether it is a characteristic of miRNA or siRNA. -Usually starts as part of the stem of a naturally occurring cellular RNA stem loop A

Cellular mRNA levels often correlate more closely with transcription rate than with transcript stability.

Which of the following processes occurs posttranscriptionally?

Trypanosome mitochondria contain two types of circular DNA linked together into large networks.These mitochondria are called

E.coli rRNA is transcribed and processed in the cytoplasm.

Select one of the choices below to indicate whether it is a characteristic of miRNA or siRNA. -Usually formed from foreign RNAs B

Most cellular RNase P enzymes have 2 subunits,one protein subunit and I RNA subunit.RNase P from which of the following has no known RNA subunit?

MicroRNAs function to silence gene expression primarily by blocking ____________ of targeted mRNAs.

RNA editing in mammals involves deamination of adenosine to form __________.

Which of the following RNAs is involved in mRNA editing?