Protein Synthesis Unit 2-6 Notes Mr. Hefti – Pulaski Biology

Essential terminology and structures you need to be able to identify

Protein synthesis: series of steps that convert the DNA code into an organism’s features. Steps… 1.Focus on a single gene on a chromosome in the nucleus 2.DNA code gets converted to mRNA code by transcription (C-G, G-C, T-A, A-U) 3.In cytoplasm, mRNA code read as 3-letter codons 4.Codons converted to amino acids by translation at ribosomes 5.Amino acid chains become proteins 6.Proteins determine traits

Read from this side first! Read from the top second. Then read from this side third.

Practice Performing Protein Synthesis 1. Translate the amino acids that the following DNA would encode… Blue eyes protein = A A A G C T T A A C G A U U U C G A A U U G C U Phe-Arg-Iso-Ala Brown eyes protein = C C A T T G G G G T T A G G UA A C C C C A A U Gly-Asp-Pro-Asp

2. This time write a potential DNA code… Brown hair protein = Ser-Tyr-Ala-Lys U C U U A U G C U A A A A G A A T A C G A T T T Blonde hair protein = Glu-Tyr-Ala-Glu C A A U A U G C U C A A G T T A T A C G A G T T

Protein synthesis: series of steps that convert the DNA code into an organism’s features. Steps… 1.Focus on a _________ on a chromosome in the ____________ 2.DNA code gets converted to ________ code by transcription (_________________) 3.In cytoplasm, mRNA code read as 3-letter __________ 4.Codons converted to _______________ by translation at ____________ 5.Amino acid chains become ____________ 6.Proteins determine _____________