Eukaryotic sexual life cycles show tremendous variation. Which of the following characteristics do all sexual life cycles have in common?
I.Alternation of generations
II.Meiosis
III.Fertilization
IV.Gametes
V.Spores
A) I, II, and IV
B) II, III, and IV
C) II, IV, and V
D) I, II, III, IV, and V

Question

Quizplus · Accepted Answer

All sexual life cycles have the processes of meiosis, fertilization, and production of gametes. However, not all have alternation of generations or spores, which makes option D incorrect. Option A is incorrect because not all sexual life cycles have alternation of generations. Therefore, the best choice is B, which includes only the characteristics shared by all eukaryotic sexual life cycles.

Eukaryotic Sexual Life Cycles Show Tremendous Variation