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2M03 Quiz 2

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Questions and Answers

RNA interference (RNAi) is produced when a ________shares the same sequence as the target mRNA

single-stranded RNA

double-stranded DNA

double-stranded RNA (correct)

single-stranded RNA

Which of the following step(s) is the processing of eukaryotic mRNA?

RNA transcripts become associated with ribonucleoproteins as they are synthesized.

5' methylguanosine cap and 3' poly(A) tails are added.

Intervening sequences are removed and exons are connected by RNA splicing

All of the above (correct)

The splicing of pre-mRNA requires________.

small nucleolar RNAs (snoRNAs)

small nuclear RNAs (snRNAs) (correct)

small interfering RNAs (siRNAs)

All of the above

Which of the following is the property of Genetic Code for amino acids?

Some of the amino acids are specified by more than one Genetic Code. (B) Signup and view all the answers

RNA polymerase II is assisted by ______to form the preinitiation complex (PIC).

general transcription factors (GTFs) (C) Signup and view all the answers

Heterogenous nuclear RNAs

are degraded after a very short time (C) Signup and view all the answers

________ is where the RNA polymerase binds prior to initiating transcription.

promoter (B) Signup and view all the answers

What is the enzymatic activity of RNA polymerase ?

both A and B (C) Signup and view all the answers

Which of the following is correct about large rRNA transcription?

All of the above (D) Signup and view all the answers

Which of the following is correct about 5S rRNA transcription?

5S rRNA transcription uses an internal promoter (C) Signup and view all the answers