transcription and translation
- Created by: vezting
- Created on: 18-10-15 18:39
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- transcription and translation
- transcription
- one length of DNA acts as a template
- the gene unwinds and unzips h bonds between bases break
- RNA nucleotides pair up with complementatry bases on the strand
- RNA polymerase lines them up so h bonds can be made
- mRNA leaves the nucleus whent he rna polymerase reaches the stop codon.
- RNA polymerase lines them up so h bonds can be made
- RNA nucleotides pair up with complementatry bases on the strand
- the gene unwinds and unzips h bonds between bases break
- one length of DNA acts as a template
- translation
- mRNA attaches to ribosome (rRNA)
- tRNA molecules bring amino acids to rRNA
- tRNA has anticodon which is complementary to the first codon on the mRNA
- a second tRNA molecule attaches itself to next codon on the mRNA
- the two amino acids join by peptide bonds. tRNA moves away
- this process continues until a stop codon is reached
- the two amino acids join by peptide bonds. tRNA moves away
- a second tRNA molecule attaches itself to next codon on the mRNA
- tRNA has anticodon which is complementary to the first codon on the mRNA
- tRNA molecules bring amino acids to rRNA
- mRNA attaches to ribosome (rRNA)
- importance of the sequence
- forms the primary structure
- determins tertiary structure
- 3D shape provides structure
- cAMP
- some proteins have to be activated by a chemical
- chemical cyclic AMP activates proteins by altering their 3D shape so it is more complementary to the molecules
- transcription
- C+G, U+A, A+T
- RNA nucleotides pair up with complementatry bases on the strand
- RNA polymerase lines them up so h bonds can be made
- mRNA leaves the nucleus whent he rna polymerase reaches the stop codon.
- RNA polymerase lines them up so h bonds can be made
- RNA nucleotides pair up with complementatry bases on the strand
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