Central Dogma - Unit 5 Flashcards
What is transcription?
Transcription is making mRNA from DNA
What is the beginning of a gene called?
The promoter
What is the protein in transcription?
RNA polymerase
What does RNA polymerase do?
RNA polymerase opens the helix and adds nucleotides..
What are the steps of Transcription?
- Initiation
- Elongation
- Termination
What happens in initiation? (mRNA)
RNA polymerase recognizes the promoter (Start of gene) and unwinds the helix.
What happens in Elongation? (mRNA)
- Complementary nucleotides are added
2. The RNA thats made falls off the DNA allowing the DNA to rewind as RNA polymerase moves on
What Termination? (mRNA)
The new RNA strand completely falls off
What is a set of 3 bases called?
A set of 3 bases is called a codon
What is tRNA responsible for?
It is responsible for translating the codons
What is the starter codons code?
AUG
What are the two important regions of TRNA?
- Amino acid site
2. Anticodon
What is translation?
The process of “reading” mRNA and turning it into a protein.