2. During DNA Replication, what would pair with TATGA? 1. TATGA 2. ATACT 3. CACTA 4. AGTAT

3. Which of the following is the start codon? 1. CGA 2. UGC 3. AUG 4. GCA 12

4. The two “backbones” of the DNA molecule are: 1. Adenines and sugars 2. Phosphates and sugars 3. Adenines and thymines 4. Thymines and sugats 12

5. What molecule is this? 1. DNA 2. mRNA 3. rRNA 4. tRNA 12

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7. What molecule is represented by the purple circle? 1. codon 2. anticodon 3. Amino acid 4. mRNA 12

8. What molecule is represented by the UGG at the bottom? 1. Amino acid 2. codon 3. anticodon 4. mRNA 12

9. What would be the corresponding DNA sequence? 1. UGG 2. ACC 3. TGG 4. TCC 12

10. A nucleotide does not contain: 1. A 5-carbon sugar 2. An amino acid 3. A nitrogen base 4. A phosphate group 12

11. Where does DNA replication take place? 1. Nucleus 2. Ribosomes 3. Cytoplasm 4. Histones 12

12. The main enzyme involved in adding new nucleotides to a growing chain is: 1. DNA protease 2. Ribose 3. Carbohydrase 4. DNA polymerase 12

13. In a human, what should the % of A be? 1. 28.8 2. 19.9 3. 29.4 4. 21.5 12

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15. Which scientists came up with the “double helix” model of DNA? 1. Franklin 2. Watson and Crick 3. Chargaff 12

16. Which bases are purines? 1. Adenine and Thymine 2. Cytosine and Adenine 3. Cytosine and Thymine 4. Adenine and Guanine 12

17. Where does translation occur? 1. Nucleus 2. Ribosome 3. Golgi 4. Mitochondria 12

18. What is produced at the end of transcription? 1. mRNA 2. Duplicated DNA 3. tRNA 4. Protein Chain 12

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20. Where does transcription take place? 1. Nucleus 2. Cytoplasm 3. Golgi Bodies 4. Ribosomes 12

21. What is the name of the process represented by the diagram below? 1. Transcription 2. Translation 3. Replication 4. Protein Synthesis 12

22. What is the name of the process when RNA molecules work together to create proteins? 1. Transcription 2. Translation 3. Replication 12

23. Transcribe the following DNA sequence: ATGCAATTGGGAT 1. ATGCAATTGGGAT 2. TACGTTAACCCTA 3. UACGUUAACCCUA 4. Met-Pro-Leu-Gly 12

24. Which base is in RNA, but not DNA? 1. Adenine 2. Uracil 3. Thymine 4. Cytosine 12

25. Which base bond with Cytosine? 1. Uracil 2. Thymine 3. Adenine 4. Guanine 12

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27. Which enzyme is responsible for unzipping the DNA? 1. DNA Polymerase 2. RNA Polymerase 3. Helicase 4. tRNA 12

28. Which base bond with Cytosine? 1. Uracil 2. Thymine 3. Adenine 4. Guanine 12

29. What is the sugar in DNA called? 1. Ribose 2. Deoxyribose 3. Glucose 4. Phosphate 12

30. Which protein codes for a DNA sequence of ACA? 1. STOP 2. ARG 3. TRP 4. CYS 12

31. Which molecule listed make up the “rungs” or steps of a DNA molecule? 1. Sugar 2. Phosphorus 3. Deoxribose 4. Nitrogen bases 12

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33. Which comparison between RNA and DNA is FALSE? 1. Their backbones are composed of different sugars. 2. One is made of one strand and the other is made of two. 3. They both contain the same four bases. 4. DNA contains thymine and no uracil. 12

34. Which type of RNA is copied from DNA and then leaves the nucleus? 1. DNA 2. mRNA 3. tRNA 4. rRNA. 12

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36. Which type of RNA make up ribosomes? 1. DNA 2. mRNA 3. tRNA 4. rRNA. 12

37. Two nucleotide strands unwind and each half serves as a template for a new chain of DNA. What is this describing? 1. Tranciption 2. Translation 3. Replication 4. Protein Synthesis 12

38. What is the end result of replication? 1. A single strand of DNA. 2. 2 different strands of DNA 3. 2 identical DNA strands 4. A mRNA strand 12

39. Which type of mutation would not result in a frameshift? 1. Point 2. Substitution 3. Insertion 4. Deletion 12

40. Which type of mutation is represented below? 1. Point 2. Substitution 3. Insertion 4. Deletion 12

41. How many nucleotides would be needed to code for a protein chain that is 3 amino acids long? 1. 1 2. 3 3. 6 4. 9 12

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