12) Which of the following is 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, by
meiosis, a spore 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 mushroom produces gametes
by mitosis, and the gametes undergo
fertilization, which is immediately followed by
meiosis.
E) A diploid cell divides by mitosis to produce
two diploid daughter cells, which then fuse to
produce a tetraploid cell.
Answer: A
Answer: B
Answer: C
Answer: E