Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
In mosses, gametes are produced by _____; in ferns, gametes are produced by _____.
A
gametophytes; gametophytes
B
sporophytes; sporophytes
C
gametophytes; sporophytes
D
sporophytes; gametophytes
Verified step by step guidance
1
Understand the life cycle of mosses and ferns: Both mosses and ferns exhibit an alternation of generations, which includes a gametophyte (haploid) stage and a sporophyte (diploid) stage.
Recall that gametes (sperm and eggs) are always haploid and are produced by the gametophyte generation in plants. This is true for both mosses and ferns.
In mosses, the gametophyte is the dominant stage of the life cycle, meaning it is the larger, more visible, and longer-lived stage. The gametophyte produces gametes through mitosis.
In ferns, the sporophyte is the dominant stage of the life cycle, but the gametophyte is still responsible for producing gametes. The gametophyte in ferns is smaller and short-lived compared to mosses.
Conclude that in both mosses and ferns, gametes are produced by the gametophyte generation, not the sporophyte generation. This eliminates the other answer choices.