Protein Synthesis
mRNA
mRNA travels from nucleus to ribosome. The role of mRNA in protein synthesis is to transfer the encoded information in DNA to the ribosomes in the cytoplasm.
rRNA
Binding site for mRNA codon and tRNA anticodon. Needed for translation.
What are the 3 types of RNA?
1. Messager RNA (mRNA) 2. Transfer RNA (tRNA) 3. Ribosimal RNA (rRNA)
What are the two steps of protein synthesis?
1. Transcription 2 Translation
What is protein synthesis?
DNA to RNA to Proteins!
tRNA
Goal is to get amino acids lined up to form peptide bonds. Anticodon on tRNA bind to mRNA codon. Needed for translation.
Translation
Occurs in cytoplasm. RNA to protein.
Transcription
Occurs in the nucleus. DNA to RNA.
pRNA
Post transcription RNA
What is the job of RNA polymerase?
Supervises process of transcription.
What does helicase do?
Unwinds DNA.
