PRACTICE TEST FOR DNA 1-3. List the three components of a nucleotides. 4. Sugar, phosphate and bases are the building blocks of the DNA molecule. What do we call these building blocks? 5. Which of the two bases is found in RNA. 6. Which of these two bases is only found in DNA 7. Which is double stranded? 8. Name the two purines. A. Uracil B. Thymine A. Uracil B. Thymine DNA or RNA For questions 9-13 refer to the following sense strand of DNA: T-A-C-G-G-A-T-T-A-T- C-C-A-T-C 9. Write the antisense strand. 10. Write the messenger RNA from the DNA strand. 11. Write the anticodons from the messenger RNA. 12. Place the proper amino acids from the chart-DNA dictionary. 13. How many amino acids will used with the above strand? A. 1 B. 2 C. 3 D. 4 E. 5 14. Where is the mRNA made: A. Nucleus B. Mitochondrium 15. C. Cytoplasm D. Golgi Body E. Plasma membrane How does the mRNA leave the nucleus? It leaves through the _________________________. For questions 16-17 use the following: A. Translation B. Transcription 16. The making of proteins 17. The making of mRNA 18. What is the name of the sugar in DNA? A. Deoxyribose B. Ribose 19-20. Name two mutagens. 21. How many amino acids are used in human protein synthesis? A. 25 B. 64 C. 21 D. 48 E. 20 22. What are the genes? A. the sugar and phosphate backbone B. The sequence of the bases C. The number of DNA molecules D. The total number of nucleotides E. None of the above 23. All proteins begin with what codon? 24. Name the amino acid that all proteins begin with. 25. Which of the following types of RNA contains amino acids and anticodons? A. rRNA B. tRNA C. mRNA 26. Chromosomes are composed of which two components? 27. Which of the following equations is indicative of protein synthesis? A. DNA----protein-----RNA B. RNA----Protein----DNA C. DNA----RNA-----Protein 28. Write the structure of an amino acid. 29. In what organelle are proteins made? A. Golgi apparatus B. Mitochondria 30. C. Nucleus D. Nucleolus E. Ribosomes What splits the DNA molecule during chromosome replication? A. Enzymes B. Bases C. Hydrogen ions D. Water FOR THE NEXT 11 QUESTIONS INDICATE WHETHER THE STRUCTURAL OR FUNCTIONAL FEATURES ARE FOR A. DNA ONLY B. RNA ONLY C. BOTH DNA AND RNA D. NEITHER DNA NOR RNA .31. IS USUALLY SINGLE STRANDED ..32. CONTAINS PYRIMIDINES .33. CONTAINS DEOXYRIBOSE 34 .IS COILED IN A DOUBEL HELIX 35.CONTAINS THYMINE 36.CONTAINS CYTOSINE 37.CONTAINS URACIL 38. BRINGS AMINO ACIDS TO THE RIBOSOME 39.IS INVOLVED IN TRANSCRIPTION 40. IS INVOLVED IN TRANSLATION 41-45. PLACE THE PROPER ORGANELLE FOR THE FOLLOWING PHRASES: USE THESE ORGANELLES. A. NUCLEUS B. CYTOPLASM C. RIBOSOME D. NUCLEAR MEMBRANE E. DNA F. mRNA G. tRNA H. rRNA I. ANTICODON J. CODON K. NUCLEOLUS 41. TRANSCRIPTION TAKES PLACE HERE. 42. TRANSLATION TAKES PLACE HERE. 43 CONTAINS ANTICODONS. 44. THE RIBSOMES ARE COMPOSED OF THIS. 45. CONTAINS THYMINE.