Answers to Practice Exam #2

A. True/False; multiple choice questions:

  1. a.
  2. d.
  3. e.
  4. b.
  5. a.
  6. c.
  7. a.
  8. c.
  9. c.
  10. b.
  11. d.
  12. b.
  13. a.
  14. c.
  15. a.
  16. d.
  17. e.
  18. b.
  19. a.
  20. a.

B. Match and Identify:

See glossary in texts and notes for definitions

C. Short Problems:


1a. Frequency of parental ditype asci is much greater than nonparental ditype.
1b. Genes are linked; none of the classes in the table represents a nonparental ditype.
1c. 2.5 map units


2a. 16 map units between hotfoot and obese; 16 map units between hotfoot and waved.
2b.

o   h   wa
+   +    +

2c. Yes, there is interference; you expect 25.6 double crossovers and observe 20. c.o.c. = 0.78; interference = 0.22