Kimmerle - F208 - 23 Name _____________________________________ Date: ________ Hr. _____ DNA to Proteins Decoding Transcribe the DNA into mRNA then translate the mRNA into a strand of Amino Acids. Use the 1 letter Amino Acid abbreviations found on page 5 to decode a word from each DNA sequence. You will then use these words to fill in the blanks on page 4 of this review. DNA GGT CTC GGA TGC TAA CTG CTC ATC mRNA AA Word DNA GTG CTT AAT TAA ACA CGA AGG CTC mRNA AA Word DNA CGT CTA CTT TTG TAT TTA CTC mRNA AA Word DNA mRNA AA Word CCC CTC TTG CTT TGG TAT ACA AGC DNA AAA GCT CGG TTG ACG TAT AGC ACT ACG GCT TAG ACA TTT mRNA AA Word DNA TGG GTG ATA TAC TAG TTA CTT mRNA AA Word DNA TGG CTC TAC GGT AAC CGG TGC CTC TCT TTA mRNA AA Word DNA CGC mRNA AA Word DNA TGC TCC CGA TAG TGA TCG mRNA AA Word 2 DNA CGA CTA CGT GGG TGC mRNA AA Word DNA CTA TTG CGG mRNA AA Word PART 2 Directions: In the Box below list the words you came up with to create a word bank for Part 3. 3 PART 3 Directions: Use the words you created with your amino acid abbreviations as a word bank to answer the following questions (these are not necessarily in the same order as your “decode” message) 1. Amino acids form a long poly-____________________ chain that will be folded into a protein. 2. ______________________ is a purine nitrogenous base that can be found in both DNA and RNA 3. ________________________ is a nitrogenous base that cannot be found in RNA 4. The study of the variety of inherited traits in a species is called ___________________________. 5. _____________________________ is one of the scientists credited with discovering the double helix structure of DNA. 6. DNA replication is considered a semi-conservative process because each strand of the original molecule acts as a ___________________ so that new nucleotides can be placed in the correct order. 7. _________ is a molecule that contains all the genetic information and never leaves the nucleus. 8. _________ is a molecule that is a transcript of one gene, and leaves the nucleus to find a ribosome. 9. Changes in the order of nucleotides can affect the expressed ___________________ of an organism. 10. If a mutation in the sex cells causes a positive change in the traits of an individual's offspring then this could cause the species to _________________ over time. 11. _______________________ is an enzyme used to separate the strands of a DNA double helix PART 3 - Extra Credit! Create a word using the letter abbreviations, then work backward to determine the mRNA and DNA sequence required to create this word Your word must be at least 6 letters and must be school appropriate. DNA mRNA AA Word 4 The single-letter abbreviations for the 20 amino acids are A – alanine C - cysteine D – Aspartic acid E – Glutamic acid F - Phenylalanine G - Glycine H - Histidine I - Isoleucine K - Lysine L - Leucine M - Methionine N - Asparagine P - Proline Q - Glutamine R - Arginine S - Serine T - Threonine V - Valine W - Tryptophan Y - Tyrosine 5
