Unit 1 - Protein Synthesis

Ribonucleic Acid (RNA)

single stranded and ribose sugar

RNA bases

Adenine - Uracil, Cytosine - Guanine

Protein Synthesis

transcription and translation

transcription

using DNA molecule to make a copy of genetic information

transcription only occurs in

nucleus of cell

translation

take transcript in RNA form to make a 3D protein

tranlation occurs where

nucleus and cytoplasm

mRNA

messenger RNA; transcript

rRNA

ribosomal RNA, where protein gets madet

tRNA

transfer RNA; holds amino acids to make proteins;

transcription process - initiation

uses RNA polymerase to unzip DNA, 10 - 20 base pairs and zips it up behind it; promoter site determines where to start

transcript process - elongation

growing of mRNA strand by adding RNA bases/nucleotides

transcript process - termination

RNA polymerase generated code that causes it to detach from DNA

transcription process - editing

spliceosome cut out introns and glues together exons

introns

mRNA sections that do not code for anythinge

exons

mRNA strands that do code for something

translation - a site

mRNA enters this site

translation - p site

codon binds to anticodon that has specific amino acid attached to tRNA

translation - e site

exit site