I. OBJECTIVE/S:
Simulate the process of protein synthesis using students' own characteristics.
II. MATERIALS:
codon chart, coin pen and pencil
crayons and other coloring materials
oslo paper
III. PROCEDURES:
1. Determine your genotype for each of the following traits.
2. lf you have the dominant phenotype and don't know your genotype, flip a coin to determine it. If heads is
flipped, the genotype will be homozygous dominant. If tails is flipped, the genotype will be heterozygous.
3. Once the genotype is known, follow that row to determine the DNA code for that trait. For example, if the genotype is "dd", go to row 3 on the table for "no dimples".
4. Determine the complementary mRNA codons that would be transcribed from that segment of DNA. Fill in the second column of the table.
Once the codons have been determined， figure out the order of complementary anticodons on the tRNA Fill
in the third column of the table.
NOTE: When finished, only 8 rows should be filled in - one for each trait.
6. Use the mRNA codon table provided to determine what the amino acids will be. Translate from the mRNA, not the tRNA.
7.Write the complete DNA and amino acid sequences on the data sheet.
IV. ANALYSIS:
1. Write the complete DNA sequence. Write the complete amino acid sequence.
2. What is the purpose of the anticodon on tRNA?
3. What is the relationship between the order of bases in DNA and the order of amino acids in the final protein?
4. Is your DNA sequence the same as, or different from, your group members?
5. How does your amino acid sequence compare? If your DNA is different, is the amino acid sequence always different? Explain.
