Domanda aperta
Choose all of the following post-transcriptional regulators of gene expression.
a) Micro RNAs
b) siRNAs
c) RNA Polymerase Degradation
d) Exosomes
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7. Gene Expression
Post-Transcriptional Regulators
Scelta multipla
What is the name of the enzyme that cleaves the miRNA in the nucleus before it travels to the cytoplasm to exert its effects?
A
RISC
B
Argonaut
C
DROSHA
D
RNA Polymerase
Guida verificata passo dopo passo1
Understand the role of miRNA (microRNA) in gene regulation, which involves processing steps in both the nucleus and the cytoplasm.
Recognize that miRNA is initially transcribed as a primary miRNA (pri-miRNA) in the nucleus.
Identify that the pri-miRNA needs to be processed into a precursor miRNA (pre-miRNA) before it can be exported to the cytoplasm.
Learn that the enzyme responsible for cleaving the pri-miRNA into pre-miRNA in the nucleus is called DROSHA.
Note that DROSHA is part of a microprocessor complex that includes other proteins, and this processing is crucial for the miRNA to eventually form a mature miRNA in the cytoplasm.
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