University:
Concordia University Wisconsin
Course:
Biology 261 | Molecular and General Genetics
Academic year:

2021
Views:

430

Pages:

7
Author:

Ella Mckay

Name: ________________________________________ Date: ________________ Block: ____ BIOLOGY 621 Identification of the Snorks INTRODUCTION: In this simulation activity, you will examine the DNA sequence of a fictitious organism - the Snork. Snorks were discovered on the planet Dee Enae in a distant solar system. Snorks only have one chromosome with eight genes on it. Your job is to analyze the genes of its DNA and determine what traits the organism has and then sketch the organism. For simplicity, the gene sequences are much smaller than real gene sequences found in living organisms. Each gene has two versions that result in a different trait being expressed in the snork. The genes are listed in the chart below. Genes #1: Body Covering #2: Body Style #3: Legs #4: Head Shape #5: Tails #6: Body Pigment #7: Eyes #8: Mouth #9: Ears #10: Arms Protein (Amino Acid Sequence) val - ser - leu val - ser - lys tyr - pro - gln - gln - lys val - pro - thr - pro - lys leu - leu - leu - pro leu - leu - ser - ala ala - val - val val - ala - ala his - ile his - his ser - pro - val val - phe - tyr asn - ile - leu - leu - pro - thr asn - iso - pro - pro - pro - thr val - asn - asn - ala asn - asn - asn - ala phe - ser - his phe - phe - his arg - tyr - cys - lys arg - arg - asn - thr Phenotype Hairless Hairy Plump Skinny 3 legged 2 legged Round head Square head Tail No tail Blue pigment (hair/skin) Red pigment (hair/skin) Small slanted eyes Large round eyes Circular mouth Rectangular mouth Pointed standing-up ears Rounded floppy ears Long spaghetti-like arms Short stumpy arms PROCEDURE: 1. Each of the following DNA samples was taken from volunteer snorks. Your teacher will assign you one or more of the DNA samples. Your job is to first transcribe the complementary mRNA of your assigned DNA sample(s). 2. Using the amino acid chart translate the genes in the mRNA into proteins. Remember that AUG is the "start" codon, and it signifies the beginning of a gene. The end of a gene will be signaled with one of the three "stop" codons (UAA, UAG, and UGA). There may be some "junk" in between genes - Watch out! 3. After you have finished translating your mRNA strand into proteins, determine the organism's phenotype (how the organism looks). 4. Sketch a picture of your assigned snork(s). Use either of the following amino acid charts to translate your mRNA into a protein. SNICKER SNORK TAC CAG TCG TTT ATT CGC TAC ATG GGG GTT GTC TTT ATC AAT TAC GAG AAT TCA CGC ATT GGA CGA TAC CGA CAA CAC ATT TAC GTA GTA ATC CCT TAC CAA AAA ATG ACT GCG TAC TTA TAG AAT GAC GGG TGG ACT TAC TTA TTG TTA CGG ATT TAT TAC AAA AGA GTG ATT TAC TCC ATG ACG TTC ATT SNUFFLE SNORK TAC CAT AGA TTT ATT CGC TAC CAA GGA TGA GGT TTC ATC AAT TAC GAA GAG GAG GGG ATT GGA CGA TAC CAA CGC CGA ATT TAC GTA GTG ATC CCT TAC CAT AAA ATA ACT GCG TAC TTA TAA GAA GAC GGG TGT ACT TAC TTA TTA TTA CGT ATT TAT TAC AAG AGC GTG ATT TAC TCC TCT TTA TGT ATT SNAPPLE SNORK TAC CAG TCG TTT ATT CGC TAC ATG GGG GTT GTC TTT ATC AAT TAC GAG AAT TCA CGC ATT GGA CGA TAC CAA CGC CGA ATT TAC GTG TAA ATC CCT TAC AGA GGG CAT ACT GCG TAC TTA TAA GAG GAG GGG TGG ACT TAC CAA TTA TTA CGT ATT TAT TAC AAG AAA GTA ATT TAC GCA GCC TTG TGG ATT SNOOPY SNORK TAC CAT AGG GAG ATT CGC TAC ATG GGG GTT GTC TTT ATC AAT TAC AAT GAG GAC GGG ATT GGA CGA TAC CAC CGT CGA ATT TAC GTA TAA ATC CCT TAC AGA GGG CAT ACT GCG TAC TTG TAA GAA GAC GGG TGT ACT TAC TTA TTG TTA CGG ATT TAT TAC AAA AGA GTG ATT TAC TCT ATA ACA TTT ATT Name of Snork: _______________________________ Picture of Snork:

Biol Snork Protein Synthesis Lab

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