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wk13-T&THmwk - 4 Use the codon chart on page 82 of...

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Biology 124L Homework 9 Transcription and Translation Due next lab (Nov 30-Dec 4, 2009) Directions: Answer the following questions in a clear and concise manner. You may need to refer to additional sources of information outside of your manual and lecture material covered in lab. Answers must be typed. Drawings may be done by hand. 5pts 1.) How is RNA structurally similar to DNA? What are three differences between DNA and RNA? 2.) Draw and label a 4-nucleotide strand of RNA, including the phosphate group, the 5-carbon sugar, and the four different nitrogenous bases found in RNA. Make sure to include all 4 of the different nitrogenous bases. 3.) What is transcription? What is translation? Where in the cell does each process happen? What are the different types of RNA involved in DNA transcription and translation and what do they do?
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Unformatted text preview: 4.) Use the codon chart on page 82 of your lab book to translate the following mRNA sequence into a polypeptide chain. (Use listed abbreviations) 5’A-U-G-G-G-C-U-C-A-A-A-G-C-C-C-A-C-G-U-G-C-G-C-G-U-A-G 3’ 5.) Given the following sequences of bases in a DNA molecule, transcribe it into an mRNA sequence. Use the chart on page 82 of your lab book to determine the amino acid sequence. Then determine which tRNA anticodons would match the mRNA. DNA STRAND 3’ T-A-C-C-T-G-G-T-G-A-C-G-T-A-A-C-G-T-A-T-C 5’ mRNA 5’_______________________________________________________3’ polypeptide______________________________________________________ Anticodons 3’________5’ 3’_________5’ 3’_________5’ 3’________5’ 3’________5’ 3’_________5’ 3’________5’...
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