MI 06 key - sn v /Y males b. yes. C. 60 + 70/1000 X 100 =...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
BIO320 BLUE (0) MIDTERM 1 SPRING 2006 1 BLUE: 1. C; 2. A; 3. E; 4. A; 5. C; 6. C; 7. B; 8. C; 9. A;, 10. D; 11. E; 12. D; 13. B; 14. E; 15. E; 16. E; 17. A; 18. B; 19. D; 20. C SA1. This is a dihybrid cross. If the genes are unlinked the four phenotypic classes should be present 9AB:3aB:3Ab:1ab. Therefore the expected numbers for each class are: 300 aB: 300 Ab: 100 ab: 900 AB. 1a. χ 2 = 432.7; 1.b df = 3; 1.c no; 1.d Since the calculated χ 2 value of 432.7 is greater than the χ 2 (7.82) value for p= 0.05, it is highly unlikely that the deviations observed are simply due to chance. Therefore the hypothesis that the genes are unlinked is rejected. SA2. a. RNA b. purine. c and d. See picture O CH CH HC HC CH 2 P 1' 2' 3' 4' 5' OH OH Note that the functional group circled for d does NOT include the 3’ carbon. e. 5’ AGTATCCAGT 3’ SA3. a. sn v / sn + v + females;
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: sn v /Y males b. yes. C. 60 + 70/1000 X 100 = 13 cM SA2. 1. Lagging; 2. Pleiotropic; 3. Epistasis; 4. Transversion; 5. Penetrance ORANGE: 1. D; 2. D; 3. D; 4. A; 5. E; 6. D; 7. D; 8. B; 9. C; 10. D; 11. A; 12. C; 13. E; 14. C; 15.C; 16. B; 17. D; 18. D; 19. A; 20. B Short answer the same as Blue except: 2a. DNA; 2b. pyrimidine; 2e. 5 TCTGAACAGG 3 3a. sn v + /sn + v females; sn v/ Y males 3c. 75 + 85/1000 X 100 = 16 cM 4a. leading; 4d. transition RED1: 1.D; 2. E; 3. D; 4. C; 5. D; 6. A; 7. E; 8. B; 9. B; 10. C; 11. A; 12. C; 13. A; 14. D; 15. E; 16. A; 17. B; 18. E; 19. D; 20. D Short answer the same as Blue except: 2e. 5 CCATCAGTAA 3; 3a. sn v + /sn + v females; sn v /Y males 3c. 70 + 80/1000 X 100 = 15 cM GREEN: 1. B; 2. D; 3. D; 4. B; 5. C; 6. A; 7. D; 8. B; 9. A; 10. B; 11. A; 12. A; 13. E; 14. D; 15. C; 16. A; 17. D; 18. E; 19. E; 20. C Short answer the same as blue except: 2a. DNA; 2b. pyrimidine; 2e. 5 CTCAGGTATC 3 4a. leading; 4d. transition...
View Full Document

This note was uploaded on 09/12/2010 for the course AMS 316 taught by Professor Xing during the Spring '09 term at SUNY Stony Brook.

Ask a homework question - tutors are online