Questions from Genetics


Q: What is the phenomenon of RNA interference (RNAi)? During RNAi

What is the phenomenon of RNA interference (RNAi)? During RNAi, explain how the double-stranded RNA is processed and how it leads to the silencing of a complementary mRNA.

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Q: With regard to RNAi, what are three possible sources for doublestranded

With regard to RNAi, what are three possible sources for doublestranded RNA?

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Q: What is the difference between an miRNA and an siRNA. How

What is the difference between an miRNA and an siRNA. How do these ncRNAs affect mRNAs?

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Q: Together with a specific set of proteins, snoRNAs direct the methylation

Together with a specific set of proteins, snoRNAs direct the methylation or pseudouridylation of rRNAs. Does the snoRNA function as a scaffold, guide, ribozyme, blocker, decoy, and/or alterer of prote...

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Q: Describe the structure of SRP in eukaryotes, and outline its role

Describe the structure of SRP in eukaryotes, and outline its role in targeting proteins to the ER membrane.

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Q: Discuss why viruses are considered nonliving.

Discuss why viruses are considered nonliving.

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Q: What is the difference between a temperate phage versus a virulent phage

What is the difference between a temperate phage versus a virulent phage?

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Q: What is a prophage, a provirus, and an episome?

What is a prophage, a provirus, and an episome? What is their common role in a viral reproductive cycle?

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Q: What key features distinguish the lytic from the lysogenic cycle?

What key features distinguish the lytic from the lysogenic cycle?

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Q: Why is an NFR needed at the core promoter for transcription to

Why is an NFR needed at the core promoter for transcription to occur?

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