DNA -> RNA -> Protein Synthesis Flashcards
DNA -> RNA is termed
Transcription
Location of transcription
Nucleus
3 phases of transcription
- Initiation
- Elongation
- Termination
RNA polymerase binds to promotor region
Transcription: Initiation
Complementary base pairs are added 5’ to 3’; DNA reads 3’ to 5’
Transcription: Elongation
Stop code is reached, hairpin loop is created
Transcription: Termination
RNA molecules involved in transcription
- rRNA
- mRNA
- tRNA
Transcribes rRNA
RNA polymerase I
Transcribes mRNA
RNA polymerase II
Transcribes tRNA
RNA polymerase III
Consists of small (40S) and large (60S) subunit to make 80S ribosome
rRNA
What does rRNA consist of?
- 40S small subunit
- 60S large subunit
What does rRNA make?
80S ribosome
What does mRNA contain?
Codon
Number of bases in mRNA
3
What does each codon code?
1 AA
What does tRNA consist of?
4 loops
Most important anticodon and acceptor stem
tRNA
Base pairs with the mRNA
Anticodon loop
Binds AA
Acceptor loop
Enzyme that binds AA to tRNA
AminoacyltRNA synthetase (requires ATP)
RNA -> Protein is termed
Translation
Location of translation
Cytoplasm
3 phases of translation
- Initiation
- Elongation
- Termination