49. 1102 transcription 10 - transcription GGU is one of the...

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transcription A 16th century scribe GGU is one of the codons for the amino acid glycine. Which of the following is another codon for glycine? A. GGA B. AGU C. GAU D. AAA E. UUU GGU is one of the codons for the amino acid glycine. Which of the following is another codon for glycine? A. GGA * B. AGU C. GAU D. AAA E. UUU Remember, DNA is the genetic material, but proteins are the workhorses of the cell • enzymes • cytoskeleton • hormones • receptors • transporters • channels • etc, etc. Not all cells make all proteins • name some “housekeeping” proteins microtubules, enzymes of glycolysis • name some cell-specific proteins RUBISCO, hemoglobin Protein is made in 2 steps: DNA --> RNA (transcription) RNA --> protein (translation) Both phases contribute to the control of gene expression. DNA --> RNA --> protein Why is there an RNA step?
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several types of RNA are transcribed mRNA tRNA mRNA mRNA rRNA mRNA tRNA DNA RNA only mRNA codes for protein most of the RNA in a cell is rRNA protein protein protein protein mRNA, rRNA, tRNA are the most common Some genes use one strand of the double helix, others use the other strand mRNA tRNA mRNA mRNA rRNA mRNA tRNA
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This note was uploaded on 03/13/2010 for the course BIOG 1102 taught by Professor Robertturgeo during the Spring '10 term at Cornell University (Engineering School).

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49. 1102 transcription 10 - transcription GGU is one of the...

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