Which statement regarding the alternation of generations is true?
A) Spores can produce new organisms only by fusing with other spores.
B) Gametes can produce new organisms only by fusing with other gametes.
C) Gametes are diploid and must undergo meiosis prior to fusing.
D) The gamete-producing and spore-producing generations are always morphologically different.
E) The gamete-producing and spore-producing generations are always morphologically similar.

Question

Quizplus · Accepted Answer

In alternation of generations, the gamete-producing generation (haploid) and the spore-producing generation (diploid) alternate. Gametes are produced by mitosis, and being haploid, they must fuse with another gamete in order to create a new diploid organism. Spores, on the other hand, are produced by meiosis and can develop into a new haploid organism without fusing with another spore. Therefore, statement B is true.

Which Statement Regarding the Alternation of Generations Is True