Question 1

In the alternation of generations life cycle, which phase is multicellular and haploid?

Accepted Answer

Gametophyte

Question 2

Which process produces haploid spores from a diploid sporophyte?

Accepted Answer

Meiosis

Question 3

What is the ploidy of a zygote in the alternation of generations?

Accepted Answer

Diploid

Question 4

Gametes are produced by which process in the gametophyte phase?

Accepted Answer

Mitosis

Question 5

Which of the following best describes the alternation of generations in land plants?

Accepted Answer

A life cycle that includes a multicellular diploid stage and a multicellular haploid stage

Question 6

Which structure in the alternation of generations cycle produces gametes?

Accepted Answer

Gametophyte

Question 7

In the alternation of generations, which process leads to the formation of a multicellular diploid sporophyte from a zygote?

Accepted Answer

Mitosis

Question 8

Which of the following is true about the ploidy of sporophytes and gametophytes?

Accepted Answer

Sporophytes are diploid, gametophytes are haploid

Question 9

Which of the following is produced by meiosis in the alternation of generations?

Accepted Answer

Spores

Question 10

A fairy ring, as shown in the image, is formed by which type of organism?

Accepted Answer

Fungi

Question 11

What is mycelium?

Accepted Answer

A network of fungal hyphae that absorbs nutrients from the soil

Question 12

In a fairy ring, which location is most likely the oldest part of the organism?

Accepted Answer

The center of the ring

Question 13

Which ecological benefit is associated with fairy ring formation in grassland ecosystems?

Accepted Answer

Decomposition of organic matter and recycling of nutrients

Question 14

Which ecological cost is associated with fairy ring formation in grassland ecosystems?

Accepted Answer

Depletion of nutrients in the inner ring, causing grass to die or change color

Question 15

Which process is responsible for the production of both sporophytes and gametophytes in the alternation of generations?

Accepted Answer

Mitosis

Question 16

If a plant undergoes alternation of generations, what is the sequence of events starting from a spore?

Accepted Answer

Spore → gametophyte → gamete → zygote → sporophyte

Question 17

Which formula represents the ploidy change during meiosis in the alternation of generations?

Accepted Answer

$$2n \rightarrow n$$

Question 18

Which formula represents the ploidy change during gamete fusion in the alternation of generations?

Accepted Answer

$$n + n \rightarrow 2n$$

Question 19

Which formula represents the ploidy change during mitosis in the alternation of generations?

Accepted Answer

$$n \rightarrow n$$

Question 20

Which of the following is NOT a derived character in the plant phylogenetic tree?

Accepted Answer

Hyphae

Alternation of Generations, Plant Phylogeny, and Fairy Rings: Step-by-Step Study Guidance

Study Guide - Practice Questions