Transcription & Translation Worksheet

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Presentation transcript:

Transcription & Translation Worksheet

1. DNA: TAC TGA TCG ACC CCC ATA ATG AAA ATC mRNA: AUG ACU AGC UGG GGG UAU UAC UUU UAG tRNA: UAC UGA UCG ACC CCC AUA AUG AAA AUC AA: START THR SER TRY GLY TYR TYR PHE STOP

2. DNA : TAC CGC TCC GCC GTC GAC AAT ACC ACT mRNA: AUG GCG AGG CGG CAG CUG UUA UGG UGA tRNA : UAC CGC UCC GCC GUC GAC AAU ACC ACU AA: START ALA ARG ARG GLU LEU LEU TRY STOP

3. DNA : TAC CAC CCC CGT ATG GCT GGG AAT ATC mRNA: AUG GUG GGG GCA UAC CGA CCC UUA UAG tRNA : UAC CAC CCC CGU AUG GCU GGG AAU AUC AA: START VAL GLY ALA TYR ARG PRO LEU STOP

4. DNA : TAC GCA CCA AAA AAG TAC CAA CCG ACT mRNA: AUG CGU GGU UUU UUC AUG GUU GGC UGA tRNA : UAC GCA CCA AAA AAG UAC CAA CCG ACU AA: MET ARG GLY PHE PHE MET VAL GLY STOP

5. DNA : TAC CTC ACA CTA CGT ATG TTG GGA ATT mRNA: AUG GAG UGU GAU GCA UAC AAC CCU UAA tRNA : UAC CUC ACA CUA CGU AUG UUG GGA AUU AA: MET GLU CYS ASP ALA TYR ASG PRO STOP

6. What are the three differences between RNA and DNA? single stranded ribose sugar nitrogen base uracil double stranded deoxyribose sugar nitogen base thymine

7. Where is DNA found in the cell? Where is RNA found in the cell? nucleus mitochondria/chloroplasts cytosol during mitosis/meiosis mRNA = nucleus or cytoplasm tRNA = nucleus or cytoplasm rRNA = within the nucleolus of the nucleus or the ribosomes of the cytoplasm

8. Name the three types of RNA and what they do. mRNA = carries the message of DNA out of the nucleus & into the cytoplasm. rRNA = a structural component of a ribosome tRNA = delivers amino acids to the growing polypeptide chain

9. Draw an mRNA strand that is complementary to the DNA strand AATTGC. UUA ACG

10. What are the steps of transcription? 1. A portion (gene) of the DNA double helix unzips. 2. RNA polymerase uses one of the DNA strands as a template to assemble the complementary nucleotides of mRNA. 3. When transcription is over, the completed mRNA molecule leaves the nucleus through a nuclear pore so translation can take place. 4. The DNA double helix zips back together.