Protein Synthesis
- Created by: tumblrgirl96
- Created on: 02-05-15 16:21
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- Protein Synthesis
- Transcription
- RNA polymerase attaches to DNA double helix
- Hydrogen bond breaks
- Strands unzip
- One strand is the template strand
- ANTISENSE STRAND
- One strand is the template strand
- Strands unzip
- Free RNA nucleotides line up next to their complementary bases and do specific base pairing
- RNA polymerase moves along DNA, separating the strand, forming RNA
- RNA
- Single polynucleotide molecule
- Triplet bases knows as codon
- RNA
- mRNA molecule moves out of nucleus through a pore in the nuclear envelope
- mRNA strand attaches to a ribosome
- Start signal tells RNA polymerase to start
- Stop signal tells RNA polymerase to stop making mRNA and detach from the DNA
- Translation
- tRNA anticodon attaches to mRNA codon by specific base pairing
- tRNA
- folded, single polynucleotide molecule
- Has specific binding site for amino acid to attach to
- Has specific sequence of 3 bases (anticodon)
- tRNA
- Second tRNA anticodon attaches to next mRNA codon
- Peptide bond forms between 2 amino acids
- First tRNA molecule moves away, leaving the amino acid, and another tRNA anticodon attaches to the next mRNA codon
- Process continues until there's a stop signal
- Protein moves away from ribosome and process is complete
- tRNA anticodon attaches to mRNA codon by specific base pairing
- Transcription
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