DNA Replication & Molecule Exam

Download the Lab Exam 3 Answer Sheet and fill in your answers • Save your answer sheet as a Word or PDF file and turn it in using the dropbox on Blackboard 1. Consider the following bases from the coding strand of a DNA molecule: ATG CCT Transcribe this base sequence and then determine which two amino acids will be produced. Write the names of both amino acids in the answer space for #1 on your answer sheet. 2. ACC is the anticodon on a tRNA molecule holding which amino acid? 3. Which kind of RNA contains codons? A, C, T, G, or U A B 4. This is a typical monomer of a nucleic acid. What is the name for monomers of nucleic acids? 5. What part of the monomer is labeled A? C 6. What part of the monomer is labeled B? 7. What part of the monomer is labeled C? 8. What process is being shown in this diagram? 9. Where in the cell does this process take place? 10. The dotted red lines in this figure depict ______________ bonds. 11. If this was RNA, describe a way that it would be different. B 12. Name the specific process being shown in A. 13. Name the specific process being shown in B. 14. Where in the cell does process B take place? (this is not the same answer as #15) A 15. What are the big red structures holding the mRNA in B? 16. What is this molecule, the final product of gene expression? 17. Which binding site is this: P or A? 18. What is the name of this molecule? 19. What is the name of the molecule that unwinds DNA to begin DNA replication? 20. During the G1 phase of the cell cycle (shown to the right) our chromosomes are in a loose form called ______________. 21. During which specific part of the cell cycle does DNA replication occur? A These pictures show various stages of embryonic development. 22. What is the structure A? C B 23. What process is shown in B? 24. What is the structure C? 25. What is the structure D? 26. What is the structure E? 27. Use the letters A through E to write the correct order of embryonic development. D E A 28. Figure A is showing the separation of _______ _______. 29. Figure B is showing the separation of _______ _______. B 30. There are 8 phases of meiosis. Which specific phase is shown here? (remember to designate 1 or 2 after the name of the phase) 31. What event that introduces genetic variability occurs during this phase? This picture is showing a stage of embryonic development. A B C 32. What is the name of the structure labeled A? 33. Which germ layer forms the structure labeled A? Choose one: ectoderm mesoderm endoderm 34. What is the name of the structure labeled B? 35. Which germ layer forms the structure labeled B? Choose one: ectoderm mesoderm endoderm 36. The label C is pointing to a block of mesoderm that is known as a __________. 37. All plants have, at some point in their lives, haploid cells that go through mitosis. Would the resulting daughter cells in this case be haploid or diploid? (choose one) 38. What is the name for the network of microtubules that forms during mitosis and meiosis? 39. During which specific phase of meiosis do sister chromatids separate? Be more specific than just saying meiosis 1 or 2. 40. Instead of the cleavage furrow observed during cytokinesis in animal cells, plants cells form a _____ _____ . 41. Meiosis takes place in which specific organ of the human body? Parent Cell Cell A Cell B Cell C Cell D This figure shows four possible cells formed after the parent cell went through some or all stages of meiosis. 42. Which cell (A-D) has only completed Meiosis 1? 43. Which cell (A-D) represents Prophase 1? 44. Which cell (A-D) shows that crossing-over has occurred? 45. True or False? “Cells C and D are both haploid.” A B 46. Which of these phases of mitosis (A, B, or C) is metaphase? 47. In which of these phases of mitosis (A, B, or C) would you expect to see the formation of a nucleus? C 48. If the parent cell is diploid before mitosis, will the daughter cells be diploid or haploid? (choose one) 49. The molecule indicated by #49 has the base sequence GGUAGAACC. What is the name of this molecule? 49 50. #50 is pointing to the letters UCU. What do we call this triplet sequence of bases? 50 51 51. #51 is pointing to an individual monomer abbreviated Thr for threonine. What kind of monomer is threonine? 52. What is the name for the part of the female reproductive system labeled A? A D 53. What is the name for the extensions of A as indicated by the arrows labeled B? 54. What is the name for the process that resulted in the release of structure C? B C 55. What is the name for the structure D? 56. The picture to the left is a cross section of what structure in the male reproductive system? Use the following terms to answer questions 57, 59, and 61. Spermatid Spermatogonium Secondary spermatocyte 57. What is the name for cell A? A Primary spermatocyte (2n) 58. Is cell A haploid, or diploid? 59. What is the name for cell B? B 60. Is cell B haploid, or diploid? C 61. What is the name for cell C? …
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