Question

Which of the following is the best explanation of alternation of generations?

a. Alternation of generations means that most plants can reproduce either sexually or asexually.
b.This concept indicates that most eukaryotes reproduce sexually at least some of the time.
c.The diversity produced by sexual reproduction helps to reduce parasitism.
e.The plant life cycle alternates between two distinct, multicellular reproductive stages—one diploid and one haploid—that give rise to each other.

Answer 1

e.The plant life cycle alternates between two distinct, multicellular reproductive stages—one diploid and one haploid—that give rise to each other.

Step-by-step explanation:

Alternation of generation refers to alternation of multicellular diploid and haploid forms in an organism's life cycle. It is found in some plants and algae. In plants it is as follows:

• Two haploid gametes fuse to form a diploid zygote.
• Diploid zygote develops into diploid sporophyte by mitosis and then produces haploid spores by meiosis.
• Haploid spore germinates into a haploid gametophyte by mitosis and it produces haploid gametes.
• The gametes fuse and the cycle repeats.

Thus, alternation can be observed between diploid sporophyte and haploid gametophyte.