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Download Protein Synthesis 1 - Transcription and Translation
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AIM: How is the Genetic Code Used? .. / .-.. --- ...- . / _... .. __ _ Morse Code 1st Copy code 2nd Translate code . - dot dash short sound long sound http://www.philtulga.com/morse.html Is mRNA an identical copy of DNA? NO! Can you tell the difference? RNA DNA DNA vs RNA • DNA – main • instructions • Double helix • • Sugar – Deoxyribose • • Bases: • Adenine – Thymine Guanine – Cytosine RNA – copy of instructions Single helix Sugar – Ribose Bases: Adenine – Uracil Guanine – Cytosine Replication is not DNA’s only job! Coded copy change It is also used to make proteins Transcription & Translation Transcription - process by which a DNA template is used to produce a single-stranded RNA molecule. Translation - process by which an RNA molecule is used to direct the production of a chain of specific amino acids. Where in the cell does this happen? st 1 The genetic code needs to get TRANSCRIBED into mRNA m The DNA base sequence needs to get copied into messenger RNA Why do we need a copy of the DNA? The DNA are the main instructions found in the nucleus, they can not leave the nucleus. Why not? How is DNA transcribed into mRNA? One side of the DNA molecule is the template Transcription RNA Polymerase Is transcription the same as replication? Transcription – coded copy of DNA to be used to make proteins. Replication - an identical copy of DNA to be given to new cells. Making mRNA AUG…………… 2nd the mRNA code needs to get TRANSLATED into a protein m The mRNA copy needs to get changed into an amino acid sequence to make a protein How many mRNA bases = 1 amino acid? codon Amino acid • Codon (3 mRNA bases) = 1 amino acid Use the chart to translate the codon UUU = ACA = CAC = What did we learn? • What are the two jobs of DNA? Replication & Protein Synthesis • How is replicationReplication = identical different from copy transcription? Transcription = coded • What are the steps copy of information of protein of DNA to mRNA, Transcription synthesis? Translation into codon. What did we learn? • Compare transcription and translation. • How is DNA different from mRNA? DNA Bingo = DINGO DNA / mRNA / Amino Acid TAC • AUG -MET (START) CCA •GGU – GLY TTA •AAU – ASP AAC •UUG – LEU CTT •GAA – GLU TTT •AAA – LYS GCA •CGU - ARG AGC •UCG – SER TAG •AUC – ISO CAT •GUA - VAL AAA •UUU – PHE AGA •UCU – SER ACT •UGA – STOP
