The Genetic Code 0.0 / 5 ? BiologyDNA, genetics and evolutionA2/A-levelOCR Created by: sjones1Created on: 01-04-16 11:01 What is meant by the term gene? A sequence of DNA nucleotides that code for a polypeptide 1 of 9 What is meant by the term Reference Strand? A strand of DNA that mRNA uses as a template in transcription 2 of 9 What is meant by the term triplet code? a group of 3 bases in a DNA molecule that code for 1 amino acid 3 of 9 What is meant by the code is degenerate? a given amino acid maybe coded for by more than one codon 4 of 9 What is mean by the code is non-overlapping? each codon codes for one amino acid 5 of 9 what is meant by the term 'stop codon'? a codon that does not code for an amino acid, but instead indicates the end of a polypeptide chain 6 of 9 what is meant by the code is almost universal? the same sequences of bases, code for the same amino acids in all organisms 7 of 9 What evidence is there to suggest that the genetic code evolved early on? it is almost universal 8 of 9 Give an example of a structural protein that DNA codes for: Collagen and Keratin 9 of 9
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