Bio T3 Transcription - 1st stage protein synthesis
- Created by: Claudiacumberpatch
- Created on: 07-03-20 17:10
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- Transcription (stage 1 protein synthesis)
- Basic info
- 1. Proteins made in cell cytoplasm by sub-cellular structures called ribosomes. DNA found in nucleus, too big to move out, cell needs to get info from DNA to ribosome in cytoplasm
- 2. This is done using a molecule called mRNA (messenger RNA)
- 3. RNA polymerase enzyme involved in joining together RNA nucleotides to make mRNA this stage called transcription
- The process
- 1.) RNA polymerase binds to non-coding region on DNA in front of a gene, causes non-coding DNA to form backbone
- 2.) 2 DNA strands unzip & RNA polymerase moves down 1 DNA strand
- 3.) Uses coding DNA in gene as a template to make mRNA, complimentary base pairing between DNA & mRNA happens
- 4.) Once made mRNA moves out of nucleus to cytoplasm & joins with a ribosome
- Basic info
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