Chapter 12 – Meiosis and Alternation of Generation
Chapter 12
Meiosis and Alternation of Generation
Multiple Choice Questions
1. Which of the following is NOT a part of sexual reproduction?
Blooms: 1. Remember
2. Which of the following statements about mitosis is NOT true?
Chapter 12 – Meiosis and Alternation of Generation
3. In flowering plants, sexual reproduction leads to the production of ______________, the
offspring for the next generation.
4. Two chromosomes that are morphologically similar, but potentially carry different versions
of each gene are referred to as ______________.
Chapter 12 – Meiosis and Alternation of Generation
5. In which phase of meiosis does crossing-over occur?
6. In meiosis
Chapter 12 – Meiosis and Alternation of Generation
7. In meiosis
8. In meiosis, a doubling of the amount of DNA in each chromosome occurs in
Chapter 12 – Meiosis and Alternation of Generation
9. In meiosis, a spindle first becomes conspicuous and complete in
10. Chiasmata appear in
11. Spindle fibers begin to form and nucleoli disappear by the end of
Chapter 12 – Meiosis and Alternation of Generation
12. One difference between meiosis and mitosis is that in meiosis
13. In which stage of meiosis do homologous chromosome pairs separate?
Chapter 12 – Meiosis and Alternation of Generation
14. Exchange of corresponding segments of chromatids of homologous chromosomes occurs
in a process called
15. At the end of Meiosis I, the total number of chromosomes in each daughter cell is
___________.
Chapter 12 – Meiosis and Alternation of Generation
16. In which phase of meiosis do the chromosomes separate at their centromeres, with
chromatids migrating to opposite poles?
17. Chromatids are once more called chromosomes in
Chapter 12 – Meiosis and Alternation of Generation
18. In which of the division II (equational division) phases of meiosis may two spindles
become fully developed at right angles to the ones that had been formed during division I?
19. In meiosis, centromeres divide separating chromatids at the beginning of
Chapter 12 – Meiosis and Alternation of Generation
20. Which of the following statements pertaining to sexual reproduction is true?
21. The spindle (spindle fibers)
Chapter 12 – Meiosis and Alternation of Generation
22. Which of the following pairs of cells do NOT have identical chromosome numbers in a
given species of plant?
23. In the life cycle of sexually reproducing plants, the diploid body is commonly referred to
as the
Chapter 12 – Meiosis and Alternation of Generation
24. Diploid organisms have how many sets of chromosomes?
25. The haploid number of chromosomes of a plant is 20. The number of chromosomes in
root, stem, and leaf cells would be
Chapter 12 – Meiosis and Alternation of Generation
26. Sporophytes produce _____ by the process of meiosis.
27. The change from a _________________________ occurs as a result of meiosis.
Chapter 12 – Meiosis and Alternation of Generation
28. ______________ is common to all organisms that reproduce sexually.
29. Haploid cells have how many sets of chromosomes?
30. Polyploid plants have __________ sets of chromosomes.
Chapter 12 – Meiosis and Alternation of Generation
True / False Questions
31. The cells of a sporophyte are diploid.
32. The sex organs in which gametes are produced are formed on gametophytes.
33. A plant that reproduces sexually cannot also reproduce asexually.
Chapter 12 – Meiosis and Alternation of Generation
34. Chiasmata occur during anaphase I.
35. New cell walls are formed between the four groups of chromosomes during anaphase I.
36. Syngamy and fertilization are alternate terms for the same thing.
Chapter 12 – Meiosis and Alternation of Generation
37. Spore mother cells give rise to gametes through meiosis.
38. Chromosomes line up along equators in both metaphase I and metaphase II.
39. The nuclear envelope disintegrates by the end of prophase I.
40. Crossing over during meiosis causes greater reshuffling of genes than just meiosis without
crossing over.
Chapter 12 – Meiosis and Alternation of Generation
41. A chiasma is not produced during mitosis.
42. A homologous chromosome pair has a total of two chromatids.
43. Multicellular forms are found in both phases of an alternation of generation life cycle.
Chapter 12 – Meiosis and Alternation of Generation
44. Any cell of a gametophyte generation is diploid.
45. Fertilization involves fusion of spores.
46. Both meiosis and fertilization contribute to the genetic variability of the offspring.