Which of the following statements describes an example of alternation of generations?
A) A grandparent and grandchild each have dark hair, but the parent has blond hair.
B) A diploid plant (sporophyte) produces a spore by meiosis that gives rise to a multicellular, haploid pollen grain (gametophyte).
C) A diploid animal produces gametes by meiosis, and the gametes undergo fertilization to produce a diploid zygote.
D) A haploid plant produces gametes by meiosis and the gametes fuse to produce a new plant.

Question

Quizplus · Accepted Answer

Alternation of generations refers to the life cycle in plants and some algae, where there is a switch between diploid and haploid stages. The diploid sporophyte stage produces spores by meiosis, which then grow into the haploid gametophyte stage. This is accurately described in option B.

Which of the Following Statements Describes an Example of Alternation