RNA Processing Flashcards
1
Q
5’ Cap
A
methylated guanine group added to the 5’ end of mRNA
2
Q
5’ Cap functions
A
inhibits degradation, promotes translation, and is necessary for export of mRNA
3
Q
Poly(A) Tail
A
adenines added at end of transcription to the 3’ end of mRNA
4
Q
Poly(A) Tail functions
A
important for nuclear export, translation and stability of mRNA
5
Q
Poly(A) Tail shortens in the cytoplasm causing
A
mRNAs with short tails to be translated less and broken down sooner
6
Q
Bacterial genes contain
A
only coding sequences of DNA
7
Q
Euk genes contain
A
coding and non-coding sequences of DNA
8
Q
Introns
A
Non-coding DNA sequences
9
Q
Exons
A
Coding sequences
