Template
|Template |Complementary DNA |Messenger RNA (mRNA) |
|TTACGG |AATGCC |AAUGCC |
| |GGCGGC | |
| | |ACGUAG |
|AGACTC | | |
| |GATAAG | |
| | |CUGGCUACA |
Practice with Transcription and Translation
1. Complete the Chart below.
2. Use the circular diagram to the right to complete the table.
|mRNA Code |Amino Acid |
|AAA |lysine |
|GCG | |
|GAU | |
|CAA | |
Answer the questions.
3. Which two mRNA codes correspond to histidine?
CAU & CAC CAA & CUC
4. How many different mRNA codes correspond to arginine?
2 4 6
5. How many different mRNA codes correspond to methionine?
6. What are the words along the outside of the circle?
7. What can you find by reading this diagram from the inside out?
8. For which amino acid is AAA a codon?
9. What is the codon for tryptophan?
10. For which amino acid is GGA a codon?
11. What is a codon for alanine? _________________
12. What are three other codons for alanine? ___________________________________
Translation
During translation, transfer RNA (tRNA) anticodons match to messenger RNA (mRNA) codons. Each tRNA molecule can carry one particular amino acid. The amino acids are joined to form a polypeptide.
Follow the directions.
13. Number the four tRNA anticodons in the order in which they should appear to match the codons in the mRNA strand.
_______ _______ _______ _______
Answer the questions.
14. Which anticodon matches the mRNA codon UUC?
15. Which amino acid is carried by the anticodon UUU?
16. What type of RNA carries the anticodon? ____________________
17. On the lines provided, identify each kind of RNA
(Ribosomal RNA= rRNA; transfer RNA= tRNA; messenger RNA= mRNA)
a. b c.
Translation
Use the diagram to answer Questions 8–10.
18. What is the anticodon for leucine?
19. What is the codon for leucine?
20. What type of RNA carries the anticodon? _______
21. What type of RNA carries the codon? _______
22. Where does transcription take places? Which of the following are involved (DNA, mRNA, tRNA) ______________________________________
________________________________________________________________
23. Where does translation take places? Which of the following are involved (DNA, mRNA, tRNA) ______________________________________
________________________________________________________________
24. Label the following on the diagram below: (cell, DNA (2), transcription, mRNA(twice), tRNA, ribosome, nucleus, protein, amino acids, cytoplasm, translation)
-----------------------
mRNA
phenylalanine
leucine
lysine
methionine
................
................
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