we know when to start reading by the capitalized word and when to stop by the period. Ribosome mRNA DNA tRNA mRNA PART B. Answer the following questions on your paper: 1. What is the first step of protein synthesis? transcription 2. What is the second step of protein synthesis? translation 3. Where does the first step of protein synthesis occur? nucleus 4. Where does the second step of protein synthesis occur? nucleus membrane 5. Nitrogen bases are read 3 bases at a time. 6. The bases on the mRNA strand are called nucleotides. 7. The bases on tRNA are called anticodons . 8. What is the start codon? aug 9. What are the stop codons? uga 10. A bunch of amino acids put together makes proteins.
PART C. Use your codon chart to determine the amino acid sequence. Remember to read through the strand and ONLY start on AUG and STOP when it tells you to stop . Follow example below: 1. DNA CCT CTT TAC ACA CGG AGG GTA CGC TAT TCT ATG ATT ACA CGG TTG CGA TCC ATA ATC mRNA GGA GAA AUG UGU UCC CAU GCG AUA AGA UAC UAA UGU GCC AAC GCU AGG UAU UAG protein start-cys-ser-his-ala-iso-arg-tyr-stop 2. DNA AGA ACA TAA TAC CTC TTA ACA CTC TAA AGA CCA GCA CTC CGA TGA ACT GGA GCA mRNA UCU UGU AUU AUG GAG AAU UGU GAG AUU UCU GGA CGU GAG GCU ACU UGA protein
- Spring '19