Kimmerle F208 Name: _________________________________________________ Hour 2nd 4th START TO FINISH – A JOURNEY FROM DNA TO PROTEIN EXPRESSION 7th Every part of a living thing—whether it be the shape of a dolphin’s tail or the amount of oxygen-carrying cells in the blood—is coded in that organism’s DNA. During transcription, a copy of the DNA is made in the form of messenger RNA, or mRNA. Ribosomes take the mRNA strand and convert it into a protein chain with the help of transfer RNA, or tRNA. Finally, this protein can combine with other proteins to send a message. Let’s see if you can follow these steps from start to finish. TOOLS: Cytosine always binds with guanine (C = G) In DNA, adenine always binds with thymine (A = T) In RNA, adenine always binds with uracil (A = U) Amino Acid Sequence Methionine – Cysteine – Tryptophan – Proline Methionine – Alanine – Glutamic Acid – Glycine Methionine – Arginine – Leucine – Alanine Result A damaged cell gets repaired An enzyme forms to break down food An antibody forms to fight infection Amino Acid Sequence Methionine – Valine – Phenylalanine – Valine Methionine – Serine – Lysine – Asparagine Methionine – Histidine – Tyrosine – Tyrosine Result Muscle cells grow Heart rate increases Hemoglobin forms to transport oxygen First, fill in the complementary strand of DNA. Then, transcribe the strand of DNA into a complementary strand of RNA. Third, translate the strand of RNA by matching each codon with its corresponding amino acid. Finally, match the amino acid sequence to its result and write it in the blank. 1. 2. Amino acid sequence: Methionine,_____________ Amino acid sequence: ___________________________ ____________________________________________________ ____________________________________________________ Result: ____________________________________________ Result: ____________________________________________ 3. 4. Amino acid sequence: ___________________________ Amino acid sequence: __________________________ ____________________________________________________ ____________________________________________________ Result: ____________________________________________ Result: ____________________________________________ 5. 6. Amino acid sequence: ___________________________ Amino acid sequence: __________________________ ____________________________________________________ ____________________________________________________ Result: ____________________________________________ Result: ____________________________________________
