Yr 10 Biology
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8 terms
Terms | Definitions |
|---|---|
 Amino Acid | amino acids contain: carbon, hydrogen, oxygen, nitrogen |
| translation | 1. mRNA arrives at ribosomes 2. mRNA is read into triplets called codons 3. tRNA molecules match up their anticodons to the codons 4. tRNA molecule deposits correct amino acid in sequence 5. all codons are reead till a stop codon is reached. 6. amino acids link up to form protein, protein detaches |
| Transfer RNA | is RNA that transfers a specific amino acid to be a polypeptide chain at the ribosomes during translation |
| polypeptide | a small protein containing amino acids |
| anticodon | is made up of 3 nucleotides that match the 3 bases of the codon in MRNA eg. AAA CGU = UUU GCT |
| messenger RNA | is the coding 'blueprint' for protein transcribed for from DNA. (arranged in three sections which each have an amino acid) |
| transcription | 1. DNA unzips 2 RNA nucleotides pair up with the bases from the DNA strand |
| codons | A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code. |
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