Gene regulation in eukaryotes only occurs during the transcription stage of gene expression.

Devoting a few sentences to each, describe the following structures or complexes and their effects on eukaryotic gene expression:

Dicer

Devoting a few sentences to each, describe the following structures or complexes and their effects on eukaryotic gene expression:

RISC

Devoting a few sentences to each, describe the following structures or complexes and their effects on eukaryotic gene expression:

Silencer

Devoting a few sentences to each, describe the following structures or complexes and their effects on eukaryotic gene expression:

Promoter

How do we know that double-stranded RNA molecules can control gene expression?

How do we know that misregulation of mRNA stability and decay is a contributing factor in some cancers?

How do we know that alternative splicing enables one gene to encode different isoforms with different functions?