1/12
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Main purpose of RNA processing
To prepare pre-mRNA for translation
Three main RNA processing steps
5′ capping, splicing, and 3′ polyadenylation
5′ capping addition
A modified guanine nucleotide
Function of the 5′ cap
Protects mRNA and helps ribosome binding
Poly-A tail
A stretch of adenines (A's) added to the 3′ end of mRNA
Function of the poly-A tail
Stabilizes mRNA and helps export from the nucleus
What removes introns from pre-mRNA
The spliceosome
Exons
Coding regions that remain in mature mRNA
Introns
Noncoding regions removed during splicing
snRNPs composition
Small nuclear RNA (snRNA) and proteins
Alternative splicing
Joining exons in different combinations to make multiple proteins from one gene
RNA editing
The alteration of RNA sequence after transcription
Codon
A sequence of 3 RNA bases that code