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Multiple Choice
In the life cycle of sexual reproducers, what is the genetic relationship between a gametophyte and the gametes it produces?
A
The gametophyte is haploid, and the gametes are diploid.
B
The gametophyte is diploid, and the gametes are haploid.
C
The gametophyte is diploid, and the gametes are diploid.
D
The gametophyte is haploid, and the gametes are haploid.
Verified step by step guidance
1
Understand the life cycle of plants, which includes two main stages: the sporophyte and the gametophyte. The sporophyte is the diploid stage, while the gametophyte is the haploid stage.
Recognize that in the alternation of generations, the gametophyte stage produces gametes through mitosis. Since the gametophyte is haploid, the gametes it produces are also haploid.
Recall that gametes are reproductive cells that fuse during fertilization to form a diploid zygote, which will develop into the sporophyte.
Differentiate between the terms 'haploid' and 'diploid': Haploid cells contain one set of chromosomes (n), while diploid cells contain two sets of chromosomes (2n).
Conclude that the correct genetic relationship is that both the gametophyte and the gametes it produces are haploid, as they both contain a single set of chromosomes.