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DNA & Protein Synthesis




DNA Protein SyLab Report;Name;Section;DNA & Protein Synthesis;Exercise 1 Modeling DNA;Observations from Procedures;1. What are the three components of a DNA molecule nucleotide?;2. What is the sugar found in DNA molecules?;3. List the four bases which are unique to DNA.;4. Fit any six nucleotides together to form a row, then list the six nucleotides in the order you;used them. (Hint: The PO4 will be connected to the sugar, where as the nucleotide will;bonded to the sugar. D-P-D-P-D-P This creates the backbone of the DNA molecule;allowing the nucleotide bases to interact with each other.);5. Work with your model pieces and try fitting the bases together to make a double strand as;shown in the illustration above. Write in the names of the bases that could pair with each to;make the complimentary pairs.;cytosine;thymine;adenine;guanine;6. After determining the pairing pattern of the nitrogenous bases, add the missing bases to this;hypothetical strand of DNA. (A=adenine, C=cytosine, G=guanine, T=thymine);3;5;A;C;G;G;T;C;T;A;C;C;5;T;G;3;1;Exercise 2 - The Globin Gene;Observations from Procedures;1. Use the DNA coding strand below to complete the DNA molecule by creating a;complimentary strand. To do this, remember that the nucleotide base pair association;between DNA is A -T and G C. Write the DNA complimentary strand for this portion of;the hemoglobin -subunit.;Coding Strand;CGT CTC TTC GGA CAC;Complimentary Strand;2. Write the mRNA sequence that will be created in the process of transcription. Remember;that the coding strand of the DNA is the strand that has the information for the gene, so you;must transcribe the coding strand. To go through the process of transcription the DNA;RNA pairing relationship is A - U, T A, C - G and G C.;Coding Strand;CGT CTC TTC GGA CAC;mRNA Strand;codon #1;codon #2 codon #3;codon #4;codon #5;3. Translate the mRNA into amino acids. Use Table 1 for the correct amino acids or this link;;Write your amino acid sequence starting with codon #1.;First;amino acid;+;Second;amino acid;+;Third;amino acid;+;Fourth;amino acid;+;+;+;+;+;Questions;4. What would happen if one of the DNA nucleotides was deleted?;5. What if the first T was substituted for an A?;6.;Would a substitution always result in a change why or why not?;Lab Report;Name;Section;7. How many nucleotides would it take to construct the coding strand of the entire 146 amino;acid globin molecule?;8. How many nucleotides would it take to model this part of the double stranded DNA;molecule?;9. Do you think this is a complete DNA molecule (chromosome) or part of one? Explain.;10. What molecule of all that you have worked with in this exercise has ultimate control over;protein synthesis? Explain you answer.;3;nthesis


Paper#17527 | Written in 18-Jul-2015

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